20184818680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{3989}}^1$

素因数の和:4313

約数の個数: 128

約数和(自身を含む): 50434876800

約数和(自身を除く): 30250058120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 263, 296, 370, 481, 520, 526, 740, 962, 1052, 1315, 1480, 1924, 2104, 2405, 2630, 3419, 3848, 3989, 4810, 5260, 6838, 7978, 9620, 9731, 10520, 13676, 15956, 17095, 19240, 19462, 19945, 27352, 31912, 34190, 38924, 39890, 48655, 51857, 68380, 77848, 79780, 97310, 103714, 126503, 136760, 147593, 159560, 194620, 207428, 253006, 259285, 295186, 389240, 414856, 506012, 518570, 590372, 632515, 737965, 1012024, 1037140, 1049107, 1180744, 1265030, 1475930, 1918709, 2074280, 2098214, 2530060, 2951860, 3837418, 4196428, 5060120, 5245535, 5903720, 7674836, 8392856, 9593545, 10491070, 13638391, 15349672, 19187090, 20982140, 27276782, 38374180, 38816959, 41964280, 54553564, 68191955, 76748360, 77633918, 109107128, 136383910, 155267836, 194084795, 272767820, 310535672, 388169590, 504620467, 545535640, 776339180, 1009240934, 1552678360, 2018481868, 2523102335, 4036963736, 5046204670, 10092409340, 20184818680]

約数ペア:

[(1, 20184818680), (2, 10092409340), (4, 5046204670), (5, 4036963736), (8, 2523102335), (10, 2018481868), (13, 1552678360), (20, 1009240934), (26, 776339180), (37, 545535640), (40, 504620467), (52, 388169590), (65, 310535672), (74, 272767820), (104, 194084795), (130, 155267836), (148, 136383910), (185, 109107128), (260, 77633918), (263, 76748360), (296, 68191955), (370, 54553564), (481, 41964280), (520, 38816959), (526, 38374180), (740, 27276782), (962, 20982140), (1052, 19187090), (1315, 15349672), (1480, 13638391), (1924, 10491070), (2104, 9593545), (2405, 8392856), (2630, 7674836), (3419, 5903720), (3848, 5245535), (3989, 5060120), (4810, 4196428), (5260, 3837418), (6838, 2951860), (7978, 2530060), (9620, 2098214), (9731, 2074280), (10520, 1918709), (13676, 1475930), (15956, 1265030), (17095, 1180744), (19240, 1049107), (19462, 1037140), (19945, 1012024), (27352, 737965), (31912, 632515), (34190, 590372), (38924, 518570), (39890, 506012), (48655, 414856), (51857, 389240), (68380, 295186), (77848, 259285), (79780, 253006), (97310, 207428), (103714, 194620), (126503, 159560), (136760, 147593)]