915464720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1\times {\mathrm{881}}^1$

素因数の和:1344

約数の個数: 80

約数和(自身を含む): 2204858880

約数和(自身を除く): 1289394160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 419, 496, 620, 838, 881, 1240, 1676, 1762, 2095, 2480, 3352, 3524, 4190, 4405, 6704, 7048, 8380, 8810, 12989, 14096, 16760, 17620, 25978, 27311, 33520, 35240, 51956, 54622, 64945, 70480, 103912, 109244, 129890, 136555, 207824, 218488, 259780, 273110, 369139, 436976, 519560, 546220, 738278, 1039120, 1092440, 1476556, 1845695, 2184880, 2953112, 3691390, 5906224, 7382780, 11443309, 14765560, 22886618, 29531120, 45773236, 57216545, 91546472, 114433090, 183092944, 228866180, 457732360, 915464720]

約数ペア:

[(1, 915464720), (2, 457732360), (4, 228866180), (5, 183092944), (8, 114433090), (10, 91546472), (16, 57216545), (20, 45773236), (31, 29531120), (40, 22886618), (62, 14765560), (80, 11443309), (124, 7382780), (155, 5906224), (248, 3691390), (310, 2953112), (419, 2184880), (496, 1845695), (620, 1476556), (838, 1092440), (881, 1039120), (1240, 738278), (1676, 546220), (1762, 519560), (2095, 436976), (2480, 369139), (3352, 273110), (3524, 259780), (4190, 218488), (4405, 207824), (6704, 136555), (7048, 129890), (8380, 109244), (8810, 103912), (12989, 70480), (14096, 64945), (16760, 54622), (17620, 51956), (25978, 35240), (27311, 33520)]