1993115280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{638819}}^1$

素因数の和:638848

約数の個数: 80

約数和(自身を含む): 6653949120

約数和(自身を除く): 4660833840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 638819, 1277638, 1916457, 2555276, 3194095, 3832914, 5110552, 6388190, 7665828, 8304647, 9582285, 10221104, 12776380, 15331656, 16609294, 19164570, 24913941, 25552760, 30663312, 33218588, 38329140, 41523235, 49827882, 51105520, 66437176, 76658280, 83046470, 99655764, 124569705, 132874352, 153316560, 166092940, 199311528, 249139410, 332185880, 398623056, 498278820, 664371760, 996557640, 1993115280]

約数ペア:

[(1, 1993115280), (2, 996557640), (3, 664371760), (4, 498278820), (5, 398623056), (6, 332185880), (8, 249139410), (10, 199311528), (12, 166092940), (13, 153316560), (15, 132874352), (16, 124569705), (20, 99655764), (24, 83046470), (26, 76658280), (30, 66437176), (39, 51105520), (40, 49827882), (48, 41523235), (52, 38329140), (60, 33218588), (65, 30663312), (78, 25552760), (80, 24913941), (104, 19164570), (120, 16609294), (130, 15331656), (156, 12776380), (195, 10221104), (208, 9582285), (240, 8304647), (260, 7665828), (312, 6388190), (390, 5110552), (520, 3832914), (624, 3194095), (780, 2555276), (1040, 1916457), (1560, 1277638), (3120, 638819)]