644500940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1129}}^1$

素因数の和:1251

約数の個数: 96

約数和(自身を含む): 1517201280

約数和(自身を除く): 872700340

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 73, 85, 92, 115, 146, 170, 230, 292, 340, 365, 391, 460, 730, 782, 1129, 1241, 1460, 1564, 1679, 1955, 2258, 2482, 3358, 3910, 4516, 4964, 5645, 6205, 6716, 7820, 8395, 11290, 12410, 16790, 19193, 22580, 24820, 25967, 28543, 33580, 38386, 51934, 57086, 76772, 82417, 95965, 103868, 114172, 129835, 142715, 164834, 191930, 259670, 285430, 329668, 383860, 412085, 441439, 519340, 570860, 824170, 882878, 1401089, 1648340, 1765756, 1895591, 2207195, 2802178, 3791182, 4414390, 5604356, 7005445, 7582364, 8828780, 9477955, 14010890, 18955910, 28021780, 32225047, 37911820, 64450094, 128900188, 161125235, 322250470, 644500940]

約数ペア:

[(1, 644500940), (2, 322250470), (4, 161125235), (5, 128900188), (10, 64450094), (17, 37911820), (20, 32225047), (23, 28021780), (34, 18955910), (46, 14010890), (68, 9477955), (73, 8828780), (85, 7582364), (92, 7005445), (115, 5604356), (146, 4414390), (170, 3791182), (230, 2802178), (292, 2207195), (340, 1895591), (365, 1765756), (391, 1648340), (460, 1401089), (730, 882878), (782, 824170), (1129, 570860), (1241, 519340), (1460, 441439), (1564, 412085), (1679, 383860), (1955, 329668), (2258, 285430), (2482, 259670), (3358, 191930), (3910, 164834), (4516, 142715), (4964, 129835), (5645, 114172), (6205, 103868), (6716, 95965), (7820, 82417), (8395, 76772), (11290, 57086), (12410, 51934), (16790, 38386), (19193, 33580), (22580, 28543), (24820, 25967)]