18851940

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{431}}^1$

素因数の和:461

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 40660380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 431, 486, 540, 729, 810, 862, 972, 1215, 1293, 1458, 1620, 1724, 2155, 2187, 2430, 2586, 2916, 3645, 3879, 4310, 4374, 4860, 5172, 6465, 7290, 7758, 8620, 8748, 10935, 11637, 12930, 14580, 15516, 19395, 21870, 23274, 25860, 34911, 38790, 43740, 46548, 58185, 69822, 77580, 104733, 116370, 139644, 174555, 209466, 232740, 314199, 349110, 418932, 523665, 628398, 698220, 942597, 1047330, 1256796, 1570995, 1885194, 2094660, 3141990, 3770388, 4712985, 6283980, 9425970, 18851940]

約数ペア:

[(1, 18851940), (2, 9425970), (3, 6283980), (4, 4712985), (5, 3770388), (6, 3141990), (9, 2094660), (10, 1885194), (12, 1570995), (15, 1256796), (18, 1047330), (20, 942597), (27, 698220), (30, 628398), (36, 523665), (45, 418932), (54, 349110), (60, 314199), (81, 232740), (90, 209466), (108, 174555), (135, 139644), (162, 116370), (180, 104733), (243, 77580), (270, 69822), (324, 58185), (405, 46548), (431, 43740), (486, 38790), (540, 34911), (729, 25860), (810, 23274), (862, 21870), (972, 19395), (1215, 15516), (1293, 14580), (1458, 12930), (1620, 11637), (1724, 10935), (2155, 8748), (2187, 8620), (2430, 7758), (2586, 7290), (2916, 6465), (3645, 5172), (3879, 4860), (4310, 4374)]