28335720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 101779200

約数和(自身を除く): 73443480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 61, 70, 79, 84, 98, 105, 120, 122, 140, 147, 158, 168, 183, 196, 210, 237, 244, 245, 280, 294, 305, 316, 366, 392, 395, 420, 427, 474, 488, 490, 553, 588, 610, 632, 732, 735, 790, 840, 854, 915, 948, 980, 1106, 1176, 1185, 1220, 1281, 1464, 1470, 1580, 1659, 1708, 1830, 1896, 1960, 2135, 2212, 2370, 2440, 2562, 2765, 2940, 2989, 3160, 3318, 3416, 3660, 3871, 4270, 4424, 4740, 4819, 5124, 5530, 5880, 5978, 6405, 6636, 7320, 7742, 8295, 8540, 8967, 9480, 9638, 10248, 11060, 11613, 11956, 12810, 13272, 14457, 14945, 15484, 16590, 17080, 17934, 19276, 19355, 22120, 23226, 23912, 24095, 25620, 28914, 29890, 30968, 33180, 33733, 35868, 38552, 38710, 44835, 46452, 48190, 51240, 57828, 58065, 59780, 66360, 67466, 71736, 72285, 77420, 89670, 92904, 96380, 101199, 115656, 116130, 119560, 134932, 144570, 154840, 168665, 179340, 192760, 202398, 232260, 236131, 269864, 289140, 337330, 358680, 404796, 464520, 472262, 505995, 578280, 674660, 708393, 809592, 944524, 1011990, 1180655, 1349320, 1416786, 1889048, 2023980, 2361310, 2833572, 3541965, 4047960, 4722620, 5667144, 7083930, 9445240, 14167860, 28335720]

約数ペア:

[(1, 28335720), (2, 14167860), (3, 9445240), (4, 7083930), (5, 5667144), (6, 4722620), (7, 4047960), (8, 3541965), (10, 2833572), (12, 2361310), (14, 2023980), (15, 1889048), (20, 1416786), (21, 1349320), (24, 1180655), (28, 1011990), (30, 944524), (35, 809592), (40, 708393), (42, 674660), (49, 578280), (56, 505995), (60, 472262), (61, 464520), (70, 404796), (79, 358680), (84, 337330), (98, 289140), (105, 269864), (120, 236131), (122, 232260), (140, 202398), (147, 192760), (158, 179340), (168, 168665), (183, 154840), (196, 144570), (210, 134932), (237, 119560), (244, 116130), (245, 115656), (280, 101199), (294, 96380), (305, 92904), (316, 89670), (366, 77420), (392, 72285), (395, 71736), (420, 67466), (427, 66360), (474, 59780), (488, 58065), (490, 57828), (553, 51240), (588, 48190), (610, 46452), (632, 44835), (732, 38710), (735, 38552), (790, 35868), (840, 33733), (854, 33180), (915, 30968), (948, 29890), (980, 28914), (1106, 25620), (1176, 24095), (1185, 23912), (1220, 23226), (1281, 22120), (1464, 19355), (1470, 19276), (1580, 17934), (1659, 17080), (1708, 16590), (1830, 15484), (1896, 14945), (1960, 14457), (2135, 13272), (2212, 12810), (2370, 11956), (2440, 11613), (2562, 11060), (2765, 10248), (2940, 9638), (2989, 9480), (3160, 8967), (3318, 8540), (3416, 8295), (3660, 7742), (3871, 7320), (4270, 6636), (4424, 6405), (4740, 5978), (4819, 5880), (5124, 5530)]