129237760

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3309

約数の個数: 72

約数和(自身を含む): 319648896

約数和(自身を除く): 190411136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3257, 3968, 4960, 6514, 7936, 9920, 13028, 16285, 19840, 26056, 32570, 39680, 52112, 65140, 100967, 104224, 130280, 201934, 208448, 260560, 403868, 416896, 504835, 521120, 807736, 833792, 1009670, 1042240, 1615472, 2019340, 2084480, 3230944, 4038680, 4168960, 6461888, 8077360, 12923776, 16154720, 25847552, 32309440, 64618880, 129237760]

約数ペア:

[(1, 129237760), (2, 64618880), (4, 32309440), (5, 25847552), (8, 16154720), (10, 12923776), (16, 8077360), (20, 6461888), (31, 4168960), (32, 4038680), (40, 3230944), (62, 2084480), (64, 2019340), (80, 1615472), (124, 1042240), (128, 1009670), (155, 833792), (160, 807736), (248, 521120), (256, 504835), (310, 416896), (320, 403868), (496, 260560), (620, 208448), (640, 201934), (992, 130280), (1240, 104224), (1280, 100967), (1984, 65140), (2480, 52112), (3257, 39680), (3968, 32570), (4960, 26056), (6514, 19840), (7936, 16285), (9920, 13028)]