64734995

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 95800320

約数和(自身を除く): 31065325

約数列:

[1, 5, 13, 19, 23, 43, 53, 65, 95, 115, 215, 247, 265, 299, 437, 559, 689, 817, 989, 1007, 1219, 1235, 1495, 2185, 2279, 2795, 3445, 4085, 4945, 5035, 5681, 6095, 10621, 11395, 12857, 13091, 15847, 18791, 23161, 28405, 29627, 43301, 52417, 53105, 64285, 65455, 79235, 93955, 115805, 148135, 216505, 244283, 262085, 301093, 562913, 681421, 995923, 1221415, 1505465, 2814565, 3407105, 4979615, 12946999, 64734995]

約数ペア:

[(1, 64734995), (5, 12946999), (13, 4979615), (19, 3407105), (23, 2814565), (43, 1505465), (53, 1221415), (65, 995923), (95, 681421), (115, 562913), (215, 301093), (247, 262085), (265, 244283), (299, 216505), (437, 148135), (559, 115805), (689, 93955), (817, 79235), (989, 65455), (1007, 64285), (1219, 53105), (1235, 52417), (1495, 43301), (2185, 29627), (2279, 28405), (2795, 23161), (3445, 18791), (4085, 15847), (4945, 13091), (5035, 12857), (5681, 11395), (6095, 10621)]