15305420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:139

約数の個数: 72

約数和(自身を含む): 36401904

約数和(自身を除く): 21096484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 43, 52, 65, 74, 86, 130, 148, 172, 185, 215, 260, 370, 430, 481, 559, 740, 860, 962, 1118, 1369, 1591, 1924, 2236, 2405, 2738, 2795, 3182, 4810, 5476, 5590, 6364, 6845, 7955, 9620, 11180, 13690, 15910, 17797, 20683, 27380, 31820, 35594, 41366, 58867, 71188, 82732, 88985, 103415, 117734, 177970, 206830, 235468, 294335, 355940, 413660, 588670, 765271, 1177340, 1530542, 3061084, 3826355, 7652710, 15305420]

約数ペア:

[(1, 15305420), (2, 7652710), (4, 3826355), (5, 3061084), (10, 1530542), (13, 1177340), (20, 765271), (26, 588670), (37, 413660), (43, 355940), (52, 294335), (65, 235468), (74, 206830), (86, 177970), (130, 117734), (148, 103415), (172, 88985), (185, 82732), (215, 71188), (260, 58867), (370, 41366), (430, 35594), (481, 31820), (559, 27380), (740, 20683), (860, 17797), (962, 15910), (1118, 13690), (1369, 11180), (1591, 9620), (1924, 7955), (2236, 6845), (2405, 6364), (2738, 5590), (2795, 5476), (3182, 4810)]