81037320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 256

約数和(自身を含む): 308206080

約数和(自身を除く): 227168760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 41, 42, 52, 56, 60, 65, 70, 78, 82, 84, 91, 104, 105, 120, 123, 130, 140, 156, 164, 168, 181, 182, 195, 205, 210, 246, 260, 273, 280, 287, 312, 328, 362, 364, 390, 410, 420, 455, 492, 520, 533, 543, 546, 574, 615, 724, 728, 780, 820, 840, 861, 905, 910, 984, 1066, 1086, 1092, 1148, 1230, 1267, 1365, 1435, 1448, 1560, 1599, 1640, 1722, 1810, 1820, 2132, 2172, 2184, 2296, 2353, 2460, 2534, 2665, 2715, 2730, 2870, 3198, 3444, 3620, 3640, 3731, 3801, 4264, 4305, 4344, 4706, 4920, 5068, 5330, 5430, 5460, 5740, 6335, 6396, 6888, 7059, 7240, 7421, 7462, 7602, 7995, 8610, 9412, 10136, 10660, 10860, 10920, 11193, 11480, 11765, 12670, 12792, 14118, 14842, 14924, 15204, 15990, 16471, 17220, 18655, 18824, 19005, 21320, 21720, 22263, 22386, 23530, 25340, 28236, 29684, 29848, 30408, 31980, 32942, 34440, 35295, 37105, 37310, 38010, 44526, 44772, 47060, 49413, 50680, 51947, 55965, 56472, 59368, 63960, 65884, 70590, 74210, 74620, 76020, 82355, 89052, 89544, 94120, 96473, 98826, 103894, 111315, 111930, 131768, 141180, 148420, 149240, 152040, 155841, 164710, 178104, 192946, 197652, 207788, 222630, 223860, 247065, 259735, 282360, 289419, 296840, 311682, 329420, 385892, 395304, 415576, 445260, 447720, 482365, 494130, 519470, 578838, 623364, 658840, 675311, 771784, 779205, 890520, 964730, 988260, 1038940, 1157676, 1246728, 1350622, 1447095, 1558410, 1929460, 1976520, 2025933, 2077880, 2315352, 2701244, 2894190, 3116820, 3376555, 3858920, 4051866, 5402488, 5788380, 6233640, 6753110, 8103732, 10129665, 11576760, 13506220, 16207464, 20259330, 27012440, 40518660, 81037320]

約数ペア:

[(1, 81037320), (2, 40518660), (3, 27012440), (4, 20259330), (5, 16207464), (6, 13506220), (7, 11576760), (8, 10129665), (10, 8103732), (12, 6753110), (13, 6233640), (14, 5788380), (15, 5402488), (20, 4051866), (21, 3858920), (24, 3376555), (26, 3116820), (28, 2894190), (30, 2701244), (35, 2315352), (39, 2077880), (40, 2025933), (41, 1976520), (42, 1929460), (52, 1558410), (56, 1447095), (60, 1350622), (65, 1246728), (70, 1157676), (78, 1038940), (82, 988260), (84, 964730), (91, 890520), (104, 779205), (105, 771784), (120, 675311), (123, 658840), (130, 623364), (140, 578838), (156, 519470), (164, 494130), (168, 482365), (181, 447720), (182, 445260), (195, 415576), (205, 395304), (210, 385892), (246, 329420), (260, 311682), (273, 296840), (280, 289419), (287, 282360), (312, 259735), (328, 247065), (362, 223860), (364, 222630), (390, 207788), (410, 197652), (420, 192946), (455, 178104), (492, 164710), (520, 155841), (533, 152040), (543, 149240), (546, 148420), (574, 141180), (615, 131768), (724, 111930), (728, 111315), (780, 103894), (820, 98826), (840, 96473), (861, 94120), (905, 89544), (910, 89052), (984, 82355), (1066, 76020), (1086, 74620), (1092, 74210), (1148, 70590), (1230, 65884), (1267, 63960), (1365, 59368), (1435, 56472), (1448, 55965), (1560, 51947), (1599, 50680), (1640, 49413), (1722, 47060), (1810, 44772), (1820, 44526), (2132, 38010), (2172, 37310), (2184, 37105), (2296, 35295), (2353, 34440), (2460, 32942), (2534, 31980), (2665, 30408), (2715, 29848), (2730, 29684), (2870, 28236), (3198, 25340), (3444, 23530), (3620, 22386), (3640, 22263), (3731, 21720), (3801, 21320), (4264, 19005), (4305, 18824), (4344, 18655), (4706, 17220), (4920, 16471), (5068, 15990), (5330, 15204), (5430, 14924), (5460, 14842), (5740, 14118), (6335, 12792), (6396, 12670), (6888, 11765), (7059, 11480), (7240, 11193), (7421, 10920), (7462, 10860), (7602, 10660), (7995, 10136), (8610, 9412)]