19801625368

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1\times {\mathrm{27073}}^1$

素因数の和:27476

約数の個数: 64

約数和(自身を含む): 43703933760

約数和(自身を除く): 23902308392

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 353, 518, 706, 1036, 1412, 2072, 2471, 2824, 4942, 9884, 13061, 19768, 26122, 27073, 52244, 54146, 91427, 104488, 108292, 182854, 189511, 216584, 365708, 379022, 731416, 758044, 1001701, 1516088, 2003402, 4006804, 7011907, 8013608, 9556769, 14023814, 19113538, 28047628, 38227076, 56095256, 66897383, 76454152, 133794766, 267589532, 353600453, 535179064, 707200906, 1414401812, 2475203171, 2828803624, 4950406342, 9900812684, 19801625368]

約数ペア:

[(1, 19801625368), (2, 9900812684), (4, 4950406342), (7, 2828803624), (8, 2475203171), (14, 1414401812), (28, 707200906), (37, 535179064), (56, 353600453), (74, 267589532), (148, 133794766), (259, 76454152), (296, 66897383), (353, 56095256), (518, 38227076), (706, 28047628), (1036, 19113538), (1412, 14023814), (2072, 9556769), (2471, 8013608), (2824, 7011907), (4942, 4006804), (9884, 2003402), (13061, 1516088), (19768, 1001701), (26122, 758044), (27073, 731416), (52244, 379022), (54146, 365708), (91427, 216584), (104488, 189511), (108292, 182854)]