920643880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:483

約数の個数: 128

約数和(自身を含む): 2297433600

約数和(自身を除く): 1376789720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 79, 104, 130, 146, 158, 260, 292, 307, 316, 365, 395, 520, 584, 614, 632, 730, 790, 949, 1027, 1228, 1460, 1535, 1580, 1898, 2054, 2456, 2920, 3070, 3160, 3796, 3991, 4108, 4745, 5135, 5767, 6140, 7592, 7982, 8216, 9490, 10270, 11534, 12280, 15964, 18980, 19955, 20540, 22411, 23068, 24253, 28835, 31928, 37960, 39910, 41080, 44822, 46136, 48506, 57670, 74971, 79820, 89644, 97012, 112055, 115340, 121265, 149942, 159640, 179288, 194024, 224110, 230680, 242530, 291343, 299884, 315289, 374855, 448220, 485060, 582686, 599768, 630578, 749710, 896440, 970120, 1165372, 1261156, 1456715, 1499420, 1576445, 1770469, 2330744, 2522312, 2913430, 2998840, 3152890, 3540938, 5826860, 6305780, 7081876, 8852345, 11653720, 12611560, 14163752, 17704690, 23016097, 35409380, 46032194, 70818760, 92064388, 115080485, 184128776, 230160970, 460321940, 920643880]

約数ペア:

[(1, 920643880), (2, 460321940), (4, 230160970), (5, 184128776), (8, 115080485), (10, 92064388), (13, 70818760), (20, 46032194), (26, 35409380), (40, 23016097), (52, 17704690), (65, 14163752), (73, 12611560), (79, 11653720), (104, 8852345), (130, 7081876), (146, 6305780), (158, 5826860), (260, 3540938), (292, 3152890), (307, 2998840), (316, 2913430), (365, 2522312), (395, 2330744), (520, 1770469), (584, 1576445), (614, 1499420), (632, 1456715), (730, 1261156), (790, 1165372), (949, 970120), (1027, 896440), (1228, 749710), (1460, 630578), (1535, 599768), (1580, 582686), (1898, 485060), (2054, 448220), (2456, 374855), (2920, 315289), (3070, 299884), (3160, 291343), (3796, 242530), (3991, 230680), (4108, 224110), (4745, 194024), (5135, 179288), (5767, 159640), (6140, 149942), (7592, 121265), (7982, 115340), (8216, 112055), (9490, 97012), (10270, 89644), (11534, 79820), (12280, 74971), (15964, 57670), (18980, 48506), (19955, 46136), (20540, 44822), (22411, 41080), (23068, 39910), (24253, 37960), (28835, 31928)]