17787380

素因数分解:

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

素因数の和:145

約数の個数: 72

約数和(自身を含む): 42297192

約数和(自身を除く): 24509812

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, 1591, 1849, 1924, 2236, 2405, 2795, 3182, 3698, 4810, 5590, 6364, 7396, 7955, 9245, 9620, 11180, 15910, 18490, 20683, 24037, 31820, 36980, 41366, 48074, 68413, 82732, 96148, 103415, 120185, 136826, 206830, 240370, 273652, 342065, 413660, 480740, 684130, 889369, 1368260, 1778738, 3557476, 4446845, 8893690, 17787380]

約数ペア:

[(1, 17787380), (2, 8893690), (4, 4446845), (5, 3557476), (10, 1778738), (13, 1368260), (20, 889369), (26, 684130), (37, 480740), (43, 413660), (52, 342065), (65, 273652), (74, 240370), (86, 206830), (130, 136826), (148, 120185), (172, 103415), (185, 96148), (215, 82732), (260, 68413), (370, 48074), (430, 41366), (481, 36980), (559, 31820), (740, 24037), (860, 20683), (962, 18490), (1118, 15910), (1591, 11180), (1849, 9620), (1924, 9245), (2236, 7955), (2405, 7396), (2795, 6364), (3182, 5590), (3698, 4810)]