28708728

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:908

約数の個数: 64

約数和(自身を含む): 75755520

約数和(自身を除く): 47046792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 47, 62, 93, 94, 124, 141, 186, 188, 248, 282, 372, 376, 564, 744, 821, 1128, 1457, 1642, 2463, 2914, 3284, 4371, 4926, 5828, 6568, 8742, 9852, 11656, 17484, 19704, 25451, 34968, 38587, 50902, 76353, 77174, 101804, 115761, 152706, 154348, 203608, 231522, 305412, 308696, 463044, 610824, 926088, 1196197, 2392394, 3588591, 4784788, 7177182, 9569576, 14354364, 28708728]

約数ペア:

[(1, 28708728), (2, 14354364), (3, 9569576), (4, 7177182), (6, 4784788), (8, 3588591), (12, 2392394), (24, 1196197), (31, 926088), (47, 610824), (62, 463044), (93, 308696), (94, 305412), (124, 231522), (141, 203608), (186, 154348), (188, 152706), (248, 115761), (282, 101804), (372, 77174), (376, 76353), (564, 50902), (744, 38587), (821, 34968), (1128, 25451), (1457, 19704), (1642, 17484), (2463, 11656), (2914, 9852), (3284, 8742), (4371, 6568), (4926, 5828)]