255373040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^2$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 667540608

約数和(自身を除く): 412167568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 89, 104, 124, 130, 155, 178, 208, 248, 260, 310, 356, 403, 445, 496, 520, 620, 712, 806, 890, 1040, 1157, 1240, 1424, 1612, 1780, 2015, 2314, 2480, 2759, 3224, 3560, 4030, 4628, 5518, 5785, 6448, 7120, 7921, 8060, 9256, 11036, 11570, 13795, 15842, 16120, 18512, 22072, 23140, 27590, 31684, 32240, 35867, 39605, 44144, 46280, 55180, 63368, 71734, 79210, 92560, 102973, 110360, 126736, 143468, 158420, 179335, 205946, 220720, 245551, 286936, 316840, 358670, 411892, 491102, 514865, 573872, 633680, 717340, 823784, 982204, 1029730, 1227755, 1434680, 1647568, 1964408, 2059460, 2455510, 2869360, 3192163, 3928816, 4118920, 4911020, 6384326, 8237840, 9822040, 12768652, 15960815, 19644080, 25537304, 31921630, 51074608, 63843260, 127686520, 255373040]

約数ペア:

[(1, 255373040), (2, 127686520), (4, 63843260), (5, 51074608), (8, 31921630), (10, 25537304), (13, 19644080), (16, 15960815), (20, 12768652), (26, 9822040), (31, 8237840), (40, 6384326), (52, 4911020), (62, 4118920), (65, 3928816), (80, 3192163), (89, 2869360), (104, 2455510), (124, 2059460), (130, 1964408), (155, 1647568), (178, 1434680), (208, 1227755), (248, 1029730), (260, 982204), (310, 823784), (356, 717340), (403, 633680), (445, 573872), (496, 514865), (520, 491102), (620, 411892), (712, 358670), (806, 316840), (890, 286936), (1040, 245551), (1157, 220720), (1240, 205946), (1424, 179335), (1612, 158420), (1780, 143468), (2015, 126736), (2314, 110360), (2480, 102973), (2759, 92560), (3224, 79210), (3560, 71734), (4030, 63368), (4628, 55180), (5518, 46280), (5785, 44144), (6448, 39605), (7120, 35867), (7921, 32240), (8060, 31684), (9256, 27590), (11036, 23140), (11570, 22072), (13795, 18512), (15842, 16120)]