30910425

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 64120896

約数和(自身を除く): 33210471

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 49, 65, 75, 91, 105, 147, 175, 195, 245, 273, 325, 455, 525, 637, 647, 735, 975, 1225, 1365, 1911, 1941, 2275, 3185, 3235, 3675, 4529, 6825, 8411, 9555, 9705, 13587, 15925, 16175, 22645, 25233, 31703, 42055, 47775, 48525, 58877, 67935, 95109, 113225, 126165, 158515, 176631, 210275, 294385, 339675, 412139, 475545, 630825, 792575, 883155, 1236417, 1471925, 2060695, 2377725, 4415775, 6182085, 10303475, 30910425]

約数ペア:

[(1, 30910425), (3, 10303475), (5, 6182085), (7, 4415775), (13, 2377725), (15, 2060695), (21, 1471925), (25, 1236417), (35, 883155), (39, 792575), (49, 630825), (65, 475545), (75, 412139), (91, 339675), (105, 294385), (147, 210275), (175, 176631), (195, 158515), (245, 126165), (273, 113225), (325, 95109), (455, 67935), (525, 58877), (637, 48525), (647, 47775), (735, 42055), (975, 31703), (1225, 25233), (1365, 22645), (1911, 16175), (1941, 15925), (2275, 13587), (3185, 9705), (3235, 9555), (3675, 8411), (4529, 6825)]