15780556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^3\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 48

約数和(自身を含む): 32447520

約数和(自身を除く): 16666964

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 73, 146, 187, 289, 292, 374, 578, 748, 803, 1156, 1241, 1606, 2482, 3179, 3212, 4913, 4964, 6358, 9826, 12716, 13651, 19652, 21097, 27302, 42194, 54043, 54604, 84388, 108086, 216172, 232067, 358649, 464134, 717298, 928268, 1434596, 3945139, 7890278, 15780556]

約数ペア:

[(1, 15780556), (2, 7890278), (4, 3945139), (11, 1434596), (17, 928268), (22, 717298), (34, 464134), (44, 358649), (68, 232067), (73, 216172), (146, 108086), (187, 84388), (289, 54604), (292, 54043), (374, 42194), (578, 27302), (748, 21097), (803, 19652), (1156, 13651), (1241, 12716), (1606, 9826), (2482, 6358), (3179, 4964), (3212, 4913)]