72871960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{821}}^1$

素因数の和:1156

約数の個数: 64

約数和(自身を含む): 188205120

約数和(自身を除く): 115333160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 317, 634, 821, 1268, 1585, 1642, 2219, 2536, 3170, 3284, 4105, 4438, 5747, 6340, 6568, 8210, 8876, 11095, 11494, 12680, 16420, 17752, 22190, 22988, 28735, 32840, 44380, 45976, 57470, 88760, 114940, 229880, 260257, 520514, 1041028, 1301285, 1821799, 2082056, 2602570, 3643598, 5205140, 7287196, 9108995, 10410280, 14574392, 18217990, 36435980, 72871960]

約数ペア:

[(1, 72871960), (2, 36435980), (4, 18217990), (5, 14574392), (7, 10410280), (8, 9108995), (10, 7287196), (14, 5205140), (20, 3643598), (28, 2602570), (35, 2082056), (40, 1821799), (56, 1301285), (70, 1041028), (140, 520514), (280, 260257), (317, 229880), (634, 114940), (821, 88760), (1268, 57470), (1585, 45976), (1642, 44380), (2219, 32840), (2536, 28735), (3170, 22988), (3284, 22190), (4105, 17752), (4438, 16420), (5747, 12680), (6340, 11494), (6568, 11095), (8210, 8876)]