18081808

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 36089208

約数和(自身を除く): 18007400

約数列:

[1, 2, 4, 8, 16, 73, 113, 137, 146, 226, 274, 292, 452, 548, 584, 904, 1096, 1168, 1808, 2192, 8249, 10001, 15481, 16498, 20002, 30962, 32996, 40004, 61924, 65992, 80008, 123848, 131984, 160016, 247696, 1130113, 2260226, 4520452, 9040904, 18081808]

約数ペア:

[(1, 18081808), (2, 9040904), (4, 4520452), (8, 2260226), (16, 1130113), (73, 247696), (113, 160016), (137, 131984), (146, 123848), (226, 80008), (274, 65992), (292, 61924), (452, 40004), (548, 32996), (584, 30962), (904, 20002), (1096, 16498), (1168, 15481), (1808, 10001), (2192, 8249)]