18955160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 52326000

約数和(自身を除く): 33370840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 509, 532, 665, 760, 931, 980, 1018, 1064, 1330, 1862, 1960, 2036, 2545, 2660, 3563, 3724, 4072, 4655, 5090, 5320, 7126, 7448, 9310, 9671, 10180, 14252, 17815, 18620, 19342, 20360, 24941, 28504, 35630, 37240, 38684, 48355, 49882, 67697, 71260, 77368, 96710, 99764, 124705, 135394, 142520, 193420, 199528, 249410, 270788, 338485, 386840, 473879, 498820, 541576, 676970, 947758, 997640, 1353940, 1895516, 2369395, 2707880, 3791032, 4738790, 9477580, 18955160]

約数ペア:

[(1, 18955160), (2, 9477580), (4, 4738790), (5, 3791032), (7, 2707880), (8, 2369395), (10, 1895516), (14, 1353940), (19, 997640), (20, 947758), (28, 676970), (35, 541576), (38, 498820), (40, 473879), (49, 386840), (56, 338485), (70, 270788), (76, 249410), (95, 199528), (98, 193420), (133, 142520), (140, 135394), (152, 124705), (190, 99764), (196, 96710), (245, 77368), (266, 71260), (280, 67697), (380, 49882), (392, 48355), (490, 38684), (509, 37240), (532, 35630), (665, 28504), (760, 24941), (931, 20360), (980, 19342), (1018, 18620), (1064, 17815), (1330, 14252), (1862, 10180), (1960, 9671), (2036, 9310), (2545, 7448), (2660, 7126), (3563, 5320), (3724, 5090), (4072, 4655)]