78421408

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:906

約数の個数: 72

約数和(自身を含む): 177223788

約数和(自身を除く): 98802380

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 169, 208, 221, 272, 338, 416, 442, 544, 676, 853, 884, 1352, 1706, 1768, 2704, 2873, 3412, 3536, 5408, 5746, 6824, 7072, 11089, 11492, 13648, 14501, 22178, 22984, 27296, 29002, 44356, 45968, 58004, 88712, 91936, 116008, 144157, 177424, 188513, 232016, 288314, 354848, 377026, 464032, 576628, 754052, 1153256, 1508104, 2306512, 2450669, 3016208, 4613024, 4901338, 6032416, 9802676, 19605352, 39210704, 78421408]

約数ペア:

[(1, 78421408), (2, 39210704), (4, 19605352), (8, 9802676), (13, 6032416), (16, 4901338), (17, 4613024), (26, 3016208), (32, 2450669), (34, 2306512), (52, 1508104), (68, 1153256), (104, 754052), (136, 576628), (169, 464032), (208, 377026), (221, 354848), (272, 288314), (338, 232016), (416, 188513), (442, 177424), (544, 144157), (676, 116008), (853, 91936), (884, 88712), (1352, 58004), (1706, 45968), (1768, 44356), (2704, 29002), (2873, 27296), (3412, 22984), (3536, 22178), (5408, 14501), (5746, 13648), (6824, 11492), (7072, 11089)]