281795280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:709

約数の個数: 160

約数和(自身を含む): 947856000

約数和(自身を除く): 666060720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 181, 195, 208, 240, 260, 312, 362, 390, 499, 520, 543, 624, 724, 780, 905, 998, 1040, 1086, 1448, 1497, 1560, 1810, 1996, 2172, 2353, 2495, 2715, 2896, 2994, 3120, 3620, 3992, 4344, 4706, 4990, 5430, 5988, 6487, 7059, 7240, 7485, 7984, 8688, 9412, 9980, 10860, 11765, 11976, 12974, 14118, 14480, 14970, 18824, 19461, 19960, 21720, 23530, 23952, 25948, 28236, 29940, 32435, 35295, 37648, 38922, 39920, 43440, 47060, 51896, 56472, 59880, 64870, 70590, 77844, 90319, 94120, 97305, 103792, 112944, 119760, 129740, 141180, 155688, 180638, 188240, 194610, 259480, 270957, 282360, 311376, 361276, 389220, 451595, 518960, 541914, 564720, 722552, 778440, 903190, 1083828, 1174147, 1354785, 1445104, 1556880, 1806380, 2167656, 2348294, 2709570, 3522441, 3612760, 4335312, 4696588, 5419140, 5870735, 7044882, 7225520, 9393176, 10838280, 11741470, 14089764, 17612205, 18786352, 21676560, 23482940, 28179528, 35224410, 46965880, 56359056, 70448820, 93931760, 140897640, 281795280]

約数ペア:

[(1, 281795280), (2, 140897640), (3, 93931760), (4, 70448820), (5, 56359056), (6, 46965880), (8, 35224410), (10, 28179528), (12, 23482940), (13, 21676560), (15, 18786352), (16, 17612205), (20, 14089764), (24, 11741470), (26, 10838280), (30, 9393176), (39, 7225520), (40, 7044882), (48, 5870735), (52, 5419140), (60, 4696588), (65, 4335312), (78, 3612760), (80, 3522441), (104, 2709570), (120, 2348294), (130, 2167656), (156, 1806380), (181, 1556880), (195, 1445104), (208, 1354785), (240, 1174147), (260, 1083828), (312, 903190), (362, 778440), (390, 722552), (499, 564720), (520, 541914), (543, 518960), (624, 451595), (724, 389220), (780, 361276), (905, 311376), (998, 282360), (1040, 270957), (1086, 259480), (1448, 194610), (1497, 188240), (1560, 180638), (1810, 155688), (1996, 141180), (2172, 129740), (2353, 119760), (2495, 112944), (2715, 103792), (2896, 97305), (2994, 94120), (3120, 90319), (3620, 77844), (3992, 70590), (4344, 64870), (4706, 59880), (4990, 56472), (5430, 51896), (5988, 47060), (6487, 43440), (7059, 39920), (7240, 38922), (7485, 37648), (7984, 35295), (8688, 32435), (9412, 29940), (9980, 28236), (10860, 25948), (11765, 23952), (11976, 23530), (12974, 21720), (14118, 19960), (14480, 19461), (14970, 18824)]