181047280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{557}}^1$

素因数の和:826

約数の個数: 80

約数和(自身を含む): 448364160

約数和(自身を除く): 267316880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 239, 272, 340, 478, 557, 680, 956, 1114, 1195, 1360, 1912, 2228, 2390, 2785, 3824, 4063, 4456, 4780, 5570, 8126, 8912, 9469, 9560, 11140, 16252, 18938, 19120, 20315, 22280, 32504, 37876, 40630, 44560, 47345, 65008, 75752, 81260, 94690, 133123, 151504, 162520, 189380, 266246, 325040, 378760, 532492, 665615, 757520, 1064984, 1331230, 2129968, 2263091, 2662460, 4526182, 5324920, 9052364, 10649840, 11315455, 18104728, 22630910, 36209456, 45261820, 90523640, 181047280]

約数ペア:

[(1, 181047280), (2, 90523640), (4, 45261820), (5, 36209456), (8, 22630910), (10, 18104728), (16, 11315455), (17, 10649840), (20, 9052364), (34, 5324920), (40, 4526182), (68, 2662460), (80, 2263091), (85, 2129968), (136, 1331230), (170, 1064984), (239, 757520), (272, 665615), (340, 532492), (478, 378760), (557, 325040), (680, 266246), (956, 189380), (1114, 162520), (1195, 151504), (1360, 133123), (1912, 94690), (2228, 81260), (2390, 75752), (2785, 65008), (3824, 47345), (4063, 44560), (4456, 40630), (4780, 37876), (5570, 32504), (8126, 22280), (8912, 20315), (9469, 19120), (9560, 18938), (11140, 16252)]