77998720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 128

約数和(自身を含む): 202253760

約数和(自身を除く): 124255040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 67, 68, 80, 85, 107, 128, 134, 136, 160, 170, 214, 268, 272, 320, 335, 340, 428, 535, 536, 544, 640, 670, 680, 856, 1070, 1072, 1088, 1139, 1340, 1360, 1712, 1819, 2140, 2144, 2176, 2278, 2680, 2720, 3424, 3638, 4280, 4288, 4556, 5360, 5440, 5695, 6848, 7169, 7276, 8560, 8576, 9095, 9112, 10720, 10880, 11390, 13696, 14338, 14552, 17120, 18190, 18224, 21440, 22780, 28676, 29104, 34240, 35845, 36380, 36448, 42880, 45560, 57352, 58208, 68480, 71690, 72760, 72896, 91120, 114704, 116416, 121873, 143380, 145520, 145792, 182240, 229408, 232832, 243746, 286760, 291040, 364480, 458816, 487492, 573520, 582080, 609365, 728960, 917632, 974984, 1147040, 1164160, 1218730, 1949968, 2294080, 2437460, 3899936, 4588160, 4874920, 7799872, 9749840, 15599744, 19499680, 38999360, 77998720]

約数ペア:

[(1, 77998720), (2, 38999360), (4, 19499680), (5, 15599744), (8, 9749840), (10, 7799872), (16, 4874920), (17, 4588160), (20, 3899936), (32, 2437460), (34, 2294080), (40, 1949968), (64, 1218730), (67, 1164160), (68, 1147040), (80, 974984), (85, 917632), (107, 728960), (128, 609365), (134, 582080), (136, 573520), (160, 487492), (170, 458816), (214, 364480), (268, 291040), (272, 286760), (320, 243746), (335, 232832), (340, 229408), (428, 182240), (535, 145792), (536, 145520), (544, 143380), (640, 121873), (670, 116416), (680, 114704), (856, 91120), (1070, 72896), (1072, 72760), (1088, 71690), (1139, 68480), (1340, 58208), (1360, 57352), (1712, 45560), (1819, 42880), (2140, 36448), (2144, 36380), (2176, 35845), (2278, 34240), (2680, 29104), (2720, 28676), (3424, 22780), (3638, 21440), (4280, 18224), (4288, 18190), (4556, 17120), (5360, 14552), (5440, 14338), (5695, 13696), (6848, 11390), (7169, 10880), (7276, 10720), (8560, 9112), (8576, 9095)]