81686240

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1$

素因数の和:472

約数の個数: 96

約数和(自身を含む): 204374016

約数和(自身を除く): 122687776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 80, 86, 124, 155, 160, 172, 215, 248, 310, 344, 383, 430, 496, 620, 688, 766, 860, 992, 1240, 1333, 1376, 1532, 1720, 1915, 2480, 2666, 3064, 3440, 3830, 4960, 5332, 6128, 6665, 6880, 7660, 10664, 11873, 12256, 13330, 15320, 16469, 21328, 23746, 26660, 30640, 32938, 42656, 47492, 53320, 59365, 61280, 65876, 82345, 94984, 106640, 118730, 131752, 164690, 189968, 213280, 237460, 263504, 329380, 379936, 474920, 510539, 527008, 658760, 949840, 1021078, 1317520, 1899680, 2042156, 2552695, 2635040, 4084312, 5105390, 8168624, 10210780, 16337248, 20421560, 40843120, 81686240]

約数ペア:

[(1, 81686240), (2, 40843120), (4, 20421560), (5, 16337248), (8, 10210780), (10, 8168624), (16, 5105390), (20, 4084312), (31, 2635040), (32, 2552695), (40, 2042156), (43, 1899680), (62, 1317520), (80, 1021078), (86, 949840), (124, 658760), (155, 527008), (160, 510539), (172, 474920), (215, 379936), (248, 329380), (310, 263504), (344, 237460), (383, 213280), (430, 189968), (496, 164690), (620, 131752), (688, 118730), (766, 106640), (860, 94984), (992, 82345), (1240, 65876), (1333, 61280), (1376, 59365), (1532, 53320), (1720, 47492), (1915, 42656), (2480, 32938), (2666, 30640), (3064, 26660), (3440, 23746), (3830, 21328), (4960, 16469), (5332, 15320), (6128, 13330), (6665, 12256), (6880, 11873), (7660, 10664)]