81772460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1831}}^1$

素因数の和:1887

約数の個数: 96

約数和(自身を含む): 221598720

約数和(自身を除く): 139826260

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 29, 35, 44, 55, 58, 70, 77, 110, 116, 140, 145, 154, 203, 220, 290, 308, 319, 385, 406, 580, 638, 770, 812, 1015, 1276, 1540, 1595, 1831, 2030, 2233, 3190, 3662, 4060, 4466, 6380, 7324, 8932, 9155, 11165, 12817, 18310, 20141, 22330, 25634, 36620, 40282, 44660, 51268, 53099, 64085, 80564, 100705, 106198, 128170, 140987, 201410, 212396, 256340, 265495, 281974, 371693, 402820, 530990, 563948, 584089, 704935, 743386, 1061980, 1168178, 1409870, 1486772, 1858465, 2336356, 2819740, 2920445, 3716930, 4088623, 5840890, 7433860, 8177246, 11681780, 16354492, 20443115, 40886230, 81772460]

約数ペア:

[(1, 81772460), (2, 40886230), (4, 20443115), (5, 16354492), (7, 11681780), (10, 8177246), (11, 7433860), (14, 5840890), (20, 4088623), (22, 3716930), (28, 2920445), (29, 2819740), (35, 2336356), (44, 1858465), (55, 1486772), (58, 1409870), (70, 1168178), (77, 1061980), (110, 743386), (116, 704935), (140, 584089), (145, 563948), (154, 530990), (203, 402820), (220, 371693), (290, 281974), (308, 265495), (319, 256340), (385, 212396), (406, 201410), (580, 140987), (638, 128170), (770, 106198), (812, 100705), (1015, 80564), (1276, 64085), (1540, 53099), (1595, 51268), (1831, 44660), (2030, 40282), (2233, 36620), (3190, 25634), (3662, 22330), (4060, 20141), (4466, 18310), (6380, 12817), (7324, 11165), (8932, 9155)]