81863460

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{7219}}^1$

素因数の和:7247

約数の個数: 120

約数和(自身を含む): 293536320

約数和(自身を除く): 211672860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 7219, 11340, 14438, 21657, 28876, 36095, 43314, 50533, 64971, 72190, 86628, 101066, 108285, 129942, 144380, 151599, 194913, 202132, 216570, 252665, 259884, 303198, 324855, 389826, 433140, 454797, 505330, 584739, 606396, 649710, 757995, 779652, 909594, 974565, 1010660, 1169478, 1299420, 1364391, 1515990, 1819188, 1949130, 2273985, 2338956, 2728782, 2923695, 3031980, 3898260, 4093173, 4547970, 5457564, 5847390, 6821955, 8186346, 9095940, 11694780, 13643910, 16372692, 20465865, 27287820, 40931730, 81863460]

約数ペア:

[(1, 81863460), (2, 40931730), (3, 27287820), (4, 20465865), (5, 16372692), (6, 13643910), (7, 11694780), (9, 9095940), (10, 8186346), (12, 6821955), (14, 5847390), (15, 5457564), (18, 4547970), (20, 4093173), (21, 3898260), (27, 3031980), (28, 2923695), (30, 2728782), (35, 2338956), (36, 2273985), (42, 1949130), (45, 1819188), (54, 1515990), (60, 1364391), (63, 1299420), (70, 1169478), (81, 1010660), (84, 974565), (90, 909594), (105, 779652), (108, 757995), (126, 649710), (135, 606396), (140, 584739), (162, 505330), (180, 454797), (189, 433140), (210, 389826), (252, 324855), (270, 303198), (315, 259884), (324, 252665), (378, 216570), (405, 202132), (420, 194913), (540, 151599), (567, 144380), (630, 129942), (756, 108285), (810, 101066), (945, 86628), (1134, 72190), (1260, 64971), (1620, 50533), (1890, 43314), (2268, 36095), (2835, 28876), (3780, 21657), (5670, 14438), (7219, 11340)]