805474420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 1797868800

約数和(自身を除く): 992394380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 97, 103, 116, 139, 145, 194, 206, 278, 290, 388, 412, 485, 515, 556, 580, 695, 970, 1030, 1390, 1940, 2060, 2780, 2813, 2987, 4031, 5626, 5974, 8062, 9991, 11252, 11948, 13483, 14065, 14317, 14935, 16124, 19982, 20155, 26966, 28130, 28634, 29870, 39964, 40310, 49955, 53932, 56260, 57268, 59740, 67415, 71585, 80620, 99910, 134830, 143170, 199820, 269660, 286340, 289739, 391007, 415193, 579478, 782014, 830386, 1158956, 1388749, 1448695, 1564028, 1660772, 1955035, 2075965, 2777498, 2897390, 3910070, 4151930, 5554996, 5794780, 6943745, 7820140, 8303860, 13887490, 27774980, 40273721, 80547442, 161094884, 201368605, 402737210, 805474420]

約数ペア:

[(1, 805474420), (2, 402737210), (4, 201368605), (5, 161094884), (10, 80547442), (20, 40273721), (29, 27774980), (58, 13887490), (97, 8303860), (103, 7820140), (116, 6943745), (139, 5794780), (145, 5554996), (194, 4151930), (206, 3910070), (278, 2897390), (290, 2777498), (388, 2075965), (412, 1955035), (485, 1660772), (515, 1564028), (556, 1448695), (580, 1388749), (695, 1158956), (970, 830386), (1030, 782014), (1390, 579478), (1940, 415193), (2060, 391007), (2780, 289739), (2813, 286340), (2987, 269660), (4031, 199820), (5626, 143170), (5974, 134830), (8062, 99910), (9991, 80620), (11252, 71585), (11948, 67415), (13483, 59740), (14065, 57268), (14317, 56260), (14935, 53932), (16124, 49955), (19982, 40310), (20155, 39964), (26966, 29870), (28130, 28634)]