208484220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{70913}}^1$

素因数の和:70939

約数の個数: 72

約数和(自身を含む): 679072464

約数和(自身を除く): 470588244

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 70913, 141826, 212739, 283652, 354565, 425478, 496391, 709130, 850956, 992782, 1063695, 1418260, 1489173, 1985564, 2127390, 2481955, 2978346, 3474737, 4254780, 4963910, 5956692, 6949474, 7445865, 9927820, 10424211, 13898948, 14891730, 17373685, 20848422, 29783460, 34747370, 41696844, 52121055, 69494740, 104242110, 208484220]

約数ペア:

[(1, 208484220), (2, 104242110), (3, 69494740), (4, 52121055), (5, 41696844), (6, 34747370), (7, 29783460), (10, 20848422), (12, 17373685), (14, 14891730), (15, 13898948), (20, 10424211), (21, 9927820), (28, 7445865), (30, 6949474), (35, 5956692), (42, 4963910), (49, 4254780), (60, 3474737), (70, 2978346), (84, 2481955), (98, 2127390), (105, 1985564), (140, 1489173), (147, 1418260), (196, 1063695), (210, 992782), (245, 850956), (294, 709130), (420, 496391), (490, 425478), (588, 354565), (735, 283652), (980, 212739), (1470, 141826), (2940, 70913)]