208481940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{673}}^1\times {\mathrm{1721}}^1$

素因数の和:2409

約数の個数: 72

約数和(自身を含む): 633702888

約数和(自身を除く): 425220948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 673, 1346, 1721, 2019, 2692, 3365, 3442, 4038, 5163, 6057, 6730, 6884, 8076, 8605, 10095, 10326, 12114, 13460, 15489, 17210, 20190, 20652, 24228, 25815, 30285, 30978, 34420, 40380, 51630, 60570, 61956, 77445, 103260, 121140, 154890, 309780, 1158233, 2316466, 3474699, 4632932, 5791165, 6949398, 10424097, 11582330, 13898796, 17373495, 20848194, 23164660, 34746990, 41696388, 52120485, 69493980, 104240970, 208481940]

約数ペア:

[(1, 208481940), (2, 104240970), (3, 69493980), (4, 52120485), (5, 41696388), (6, 34746990), (9, 23164660), (10, 20848194), (12, 17373495), (15, 13898796), (18, 11582330), (20, 10424097), (30, 6949398), (36, 5791165), (45, 4632932), (60, 3474699), (90, 2316466), (180, 1158233), (673, 309780), (1346, 154890), (1721, 121140), (2019, 103260), (2692, 77445), (3365, 61956), (3442, 60570), (4038, 51630), (5163, 40380), (6057, 34420), (6730, 30978), (6884, 30285), (8076, 25815), (8605, 24228), (10095, 20652), (10326, 20190), (12114, 17210), (13460, 15489)]