28574840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{239}}^1$

素因数の和:325

約数の個数: 96

約数和(自身を含む): 76334400

約数和(自身を除く): 47759560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 140, 196, 239, 244, 245, 280, 305, 392, 427, 478, 488, 490, 610, 854, 956, 980, 1195, 1220, 1673, 1708, 1912, 1960, 2135, 2390, 2440, 2989, 3346, 3416, 4270, 4780, 5978, 6692, 8365, 8540, 9560, 11711, 11956, 13384, 14579, 14945, 16730, 17080, 23422, 23912, 29158, 29890, 33460, 46844, 58316, 58555, 59780, 66920, 72895, 93688, 102053, 116632, 117110, 119560, 145790, 204106, 234220, 291580, 408212, 468440, 510265, 583160, 714371, 816424, 1020530, 1428742, 2041060, 2857484, 3571855, 4082120, 5714968, 7143710, 14287420, 28574840]

約数ペア:

[(1, 28574840), (2, 14287420), (4, 7143710), (5, 5714968), (7, 4082120), (8, 3571855), (10, 2857484), (14, 2041060), (20, 1428742), (28, 1020530), (35, 816424), (40, 714371), (49, 583160), (56, 510265), (61, 468440), (70, 408212), (98, 291580), (122, 234220), (140, 204106), (196, 145790), (239, 119560), (244, 117110), (245, 116632), (280, 102053), (305, 93688), (392, 72895), (427, 66920), (478, 59780), (488, 58555), (490, 58316), (610, 46844), (854, 33460), (956, 29890), (980, 29158), (1195, 23912), (1220, 23422), (1673, 17080), (1708, 16730), (1912, 14945), (1960, 14579), (2135, 13384), (2390, 11956), (2440, 11711), (2989, 9560), (3346, 8540), (3416, 8365), (4270, 6692), (4780, 5978)]