28264180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 69866496

約数和(自身を除く): 41602316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 151, 191, 196, 245, 302, 382, 490, 604, 755, 764, 955, 980, 1057, 1337, 1510, 1910, 2114, 2674, 3020, 3820, 4228, 5285, 5348, 6685, 7399, 9359, 10570, 13370, 14798, 18718, 21140, 26740, 28841, 29596, 36995, 37436, 46795, 57682, 73990, 93590, 115364, 144205, 147980, 187180, 201887, 288410, 403774, 576820, 807548, 1009435, 1413209, 2018870, 2826418, 4037740, 5652836, 7066045, 14132090, 28264180]

約数ペア:

[(1, 28264180), (2, 14132090), (4, 7066045), (5, 5652836), (7, 4037740), (10, 2826418), (14, 2018870), (20, 1413209), (28, 1009435), (35, 807548), (49, 576820), (70, 403774), (98, 288410), (140, 201887), (151, 187180), (191, 147980), (196, 144205), (245, 115364), (302, 93590), (382, 73990), (490, 57682), (604, 46795), (755, 37436), (764, 36995), (955, 29596), (980, 28841), (1057, 26740), (1337, 21140), (1510, 18718), (1910, 14798), (2114, 13370), (2674, 10570), (3020, 9359), (3820, 7399), (4228, 6685), (5285, 5348)]