64997900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1597}}^1$

素因数の和:1659

約数の個数: 72

約数和(自身を含む): 158125296

約数和(自身を除く): 93127396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 148, 185, 220, 275, 370, 407, 550, 740, 814, 925, 1100, 1597, 1628, 1850, 2035, 3194, 3700, 4070, 6388, 7985, 8140, 10175, 15970, 17567, 20350, 31940, 35134, 39925, 40700, 59089, 70268, 79850, 87835, 118178, 159700, 175670, 236356, 295445, 351340, 439175, 590890, 649979, 878350, 1181780, 1299958, 1477225, 1756700, 2599916, 2954450, 3249895, 5908900, 6499790, 12999580, 16249475, 32498950, 64997900]

約数ペア:

[(1, 64997900), (2, 32498950), (4, 16249475), (5, 12999580), (10, 6499790), (11, 5908900), (20, 3249895), (22, 2954450), (25, 2599916), (37, 1756700), (44, 1477225), (50, 1299958), (55, 1181780), (74, 878350), (100, 649979), (110, 590890), (148, 439175), (185, 351340), (220, 295445), (275, 236356), (370, 175670), (407, 159700), (550, 118178), (740, 87835), (814, 79850), (925, 70268), (1100, 59089), (1597, 40700), (1628, 39925), (1850, 35134), (2035, 31940), (3194, 20350), (3700, 17567), (4070, 15970), (6388, 10175), (7985, 8140)]