18772760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1453}}^1$

素因数の和:1500

約数の個数: 64

約数和(自身を含む): 47109600

約数和(自身を除く): 28336840

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1453, 1615, 2584, 2906, 3230, 5812, 6460, 7265, 11624, 12920, 14530, 24701, 27607, 29060, 49402, 55214, 58120, 98804, 110428, 123505, 138035, 197608, 220856, 247010, 276070, 469319, 494020, 552140, 938638, 988040, 1104280, 1877276, 2346595, 3754552, 4693190, 9386380, 18772760]

約数ペア:

[(1, 18772760), (2, 9386380), (4, 4693190), (5, 3754552), (8, 2346595), (10, 1877276), (17, 1104280), (19, 988040), (20, 938638), (34, 552140), (38, 494020), (40, 469319), (68, 276070), (76, 247010), (85, 220856), (95, 197608), (136, 138035), (152, 123505), (170, 110428), (190, 98804), (323, 58120), (340, 55214), (380, 49402), (646, 29060), (680, 27607), (760, 24701), (1292, 14530), (1453, 12920), (1615, 11624), (2584, 7265), (2906, 6460), (3230, 5812)]