20512157872

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:363

約数の個数: 160

約数和(自身を含む): 43128668160

約数和(自身を除く): 22616510288

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 73, 79, 101, 124, 142, 146, 158, 202, 248, 284, 292, 316, 404, 496, 568, 584, 632, 808, 1136, 1168, 1264, 1616, 2201, 2263, 2449, 3131, 4402, 4526, 4898, 5183, 5609, 5767, 6262, 7171, 7373, 7979, 8804, 9052, 9796, 10366, 11218, 11534, 12524, 14342, 14746, 15958, 17608, 18104, 19592, 20732, 22436, 23068, 25048, 28684, 29492, 31916, 35216, 36208, 39184, 41464, 44872, 46136, 50096, 57368, 58984, 63832, 82928, 89744, 92272, 114736, 117968, 127664, 160673, 173879, 178777, 222301, 228563, 247349, 321346, 347758, 357554, 409457, 444602, 457126, 494698, 523483, 566509, 582467, 642692, 695516, 715108, 818914, 889204, 914252, 989396, 1046966, 1133018, 1164934, 1285384, 1391032, 1430216, 1637828, 1778408, 1828504, 1978792, 2093932, 2266036, 2329868, 2570768, 2782064, 2860432, 3275656, 3556816, 3657008, 3957584, 4187864, 4532072, 4659736, 6551312, 8375728, 9064144, 9319472, 12693167, 16227973, 17561779, 18056477, 25386334, 32455946, 35123558, 36112954, 41355157, 50772668, 64911892, 70247116, 72225908, 82710314, 101545336, 129823784, 140494232, 144451816, 165420628, 203090672, 259647568, 280988464, 288903632, 330841256, 661682512, 1282009867, 2564019734, 5128039468, 10256078936, 20512157872]

約数ペア:

[(1, 20512157872), (2, 10256078936), (4, 5128039468), (8, 2564019734), (16, 1282009867), (31, 661682512), (62, 330841256), (71, 288903632), (73, 280988464), (79, 259647568), (101, 203090672), (124, 165420628), (142, 144451816), (146, 140494232), (158, 129823784), (202, 101545336), (248, 82710314), (284, 72225908), (292, 70247116), (316, 64911892), (404, 50772668), (496, 41355157), (568, 36112954), (584, 35123558), (632, 32455946), (808, 25386334), (1136, 18056477), (1168, 17561779), (1264, 16227973), (1616, 12693167), (2201, 9319472), (2263, 9064144), (2449, 8375728), (3131, 6551312), (4402, 4659736), (4526, 4532072), (4898, 4187864), (5183, 3957584), (5609, 3657008), (5767, 3556816), (6262, 3275656), (7171, 2860432), (7373, 2782064), (7979, 2570768), (8804, 2329868), (9052, 2266036), (9796, 2093932), (10366, 1978792), (11218, 1828504), (11534, 1778408), (12524, 1637828), (14342, 1430216), (14746, 1391032), (15958, 1285384), (17608, 1164934), (18104, 1133018), (19592, 1046966), (20732, 989396), (22436, 914252), (23068, 889204), (25048, 818914), (28684, 715108), (29492, 695516), (31916, 642692), (35216, 582467), (36208, 566509), (39184, 523483), (41464, 494698), (44872, 457126), (46136, 444602), (50096, 409457), (57368, 357554), (58984, 347758), (63832, 321346), (82928, 247349), (89744, 228563), (92272, 222301), (114736, 178777), (117968, 173879), (127664, 160673)]