81075280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1$

素因数の和:429

約数の個数: 160

約数和(自身を含む): 233735040

約数和(自身を除く): 152659760

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 19, 20, 22, 26, 38, 40, 44, 52, 55, 65, 76, 80, 88, 95, 104, 110, 130, 143, 152, 176, 190, 208, 209, 220, 247, 260, 286, 304, 373, 380, 418, 440, 494, 520, 572, 715, 746, 760, 836, 880, 988, 1040, 1045, 1144, 1235, 1430, 1492, 1520, 1672, 1865, 1976, 2090, 2288, 2470, 2717, 2860, 2984, 3344, 3730, 3952, 4103, 4180, 4849, 4940, 5434, 5720, 5968, 7087, 7460, 8206, 8360, 9698, 9880, 10868, 11440, 13585, 14174, 14920, 16412, 16720, 19396, 19760, 20515, 21736, 24245, 27170, 28348, 29840, 32824, 35435, 38792, 41030, 43472, 48490, 53339, 54340, 56696, 65648, 70870, 77584, 77957, 82060, 92131, 96980, 106678, 108680, 113392, 141740, 155914, 164120, 184262, 193960, 213356, 217360, 266695, 283480, 311828, 328240, 368524, 387920, 389785, 426712, 460655, 533390, 566960, 623656, 737048, 779570, 853424, 921310, 1013441, 1066780, 1247312, 1474096, 1559140, 1842620, 2026882, 2133560, 3118280, 3685240, 4053764, 4267120, 5067205, 6236560, 7370480, 8107528, 10134410, 16215056, 20268820, 40537640, 81075280]

約数ペア:

[(1, 81075280), (2, 40537640), (4, 20268820), (5, 16215056), (8, 10134410), (10, 8107528), (11, 7370480), (13, 6236560), (16, 5067205), (19, 4267120), (20, 4053764), (22, 3685240), (26, 3118280), (38, 2133560), (40, 2026882), (44, 1842620), (52, 1559140), (55, 1474096), (65, 1247312), (76, 1066780), (80, 1013441), (88, 921310), (95, 853424), (104, 779570), (110, 737048), (130, 623656), (143, 566960), (152, 533390), (176, 460655), (190, 426712), (208, 389785), (209, 387920), (220, 368524), (247, 328240), (260, 311828), (286, 283480), (304, 266695), (373, 217360), (380, 213356), (418, 193960), (440, 184262), (494, 164120), (520, 155914), (572, 141740), (715, 113392), (746, 108680), (760, 106678), (836, 96980), (880, 92131), (988, 82060), (1040, 77957), (1045, 77584), (1144, 70870), (1235, 65648), (1430, 56696), (1492, 54340), (1520, 53339), (1672, 48490), (1865, 43472), (1976, 41030), (2090, 38792), (2288, 35435), (2470, 32824), (2717, 29840), (2860, 28348), (2984, 27170), (3344, 24245), (3730, 21736), (3952, 20515), (4103, 19760), (4180, 19396), (4849, 16720), (4940, 16412), (5434, 14920), (5720, 14174), (5968, 13585), (7087, 11440), (7460, 10868), (8206, 9880), (8360, 9698)]