720778828

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:492

約数の個数: 96

約数和(自身を含む): 1620057600

約数和(自身を除く): 899278772

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 163, 196, 293, 308, 326, 343, 539, 586, 652, 686, 1078, 1141, 1172, 1372, 1793, 2051, 2156, 2282, 3223, 3586, 3773, 4102, 4564, 6446, 7172, 7546, 7987, 8204, 12551, 12892, 14357, 15092, 15974, 22561, 25102, 28714, 31948, 45122, 47759, 50204, 55909, 57428, 87857, 90244, 95518, 100499, 111818, 157927, 175714, 191036, 200998, 223636, 315854, 334313, 351428, 401996, 525349, 614999, 631708, 668626, 1050698, 1105489, 1229998, 1337252, 2101396, 2210978, 2340191, 2459996, 3677443, 4421956, 4680382, 7354886, 9360764, 14709772, 16381337, 25742101, 32762674, 51484202, 65525348, 102968404, 180194707, 360389414, 720778828]

約数ペア:

[(1, 720778828), (2, 360389414), (4, 180194707), (7, 102968404), (11, 65525348), (14, 51484202), (22, 32762674), (28, 25742101), (44, 16381337), (49, 14709772), (77, 9360764), (98, 7354886), (154, 4680382), (163, 4421956), (196, 3677443), (293, 2459996), (308, 2340191), (326, 2210978), (343, 2101396), (539, 1337252), (586, 1229998), (652, 1105489), (686, 1050698), (1078, 668626), (1141, 631708), (1172, 614999), (1372, 525349), (1793, 401996), (2051, 351428), (2156, 334313), (2282, 315854), (3223, 223636), (3586, 200998), (3773, 191036), (4102, 175714), (4564, 157927), (6446, 111818), (7172, 100499), (7546, 95518), (7987, 90244), (8204, 87857), (12551, 57428), (12892, 55909), (14357, 50204), (15092, 47759), (15974, 45122), (22561, 31948), (25102, 28714)]