87015760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2699}}^1$

素因数の和:2756

約数の個数: 80

約数和(自身を含む): 224985600

約数和(自身を除く): 137969840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 2699, 3224, 4030, 5398, 6448, 8060, 10796, 13495, 16120, 21592, 26990, 32240, 35087, 43184, 53980, 70174, 83669, 107960, 140348, 167338, 175435, 215920, 280696, 334676, 350870, 418345, 561392, 669352, 701740, 836690, 1087697, 1338704, 1403480, 1673380, 2175394, 2806960, 3346760, 4350788, 5438485, 6693520, 8701576, 10876970, 17403152, 21753940, 43507880, 87015760]

約数ペア:

[(1, 87015760), (2, 43507880), (4, 21753940), (5, 17403152), (8, 10876970), (10, 8701576), (13, 6693520), (16, 5438485), (20, 4350788), (26, 3346760), (31, 2806960), (40, 2175394), (52, 1673380), (62, 1403480), (65, 1338704), (80, 1087697), (104, 836690), (124, 701740), (130, 669352), (155, 561392), (208, 418345), (248, 350870), (260, 334676), (310, 280696), (403, 215920), (496, 175435), (520, 167338), (620, 140348), (806, 107960), (1040, 83669), (1240, 70174), (1612, 53980), (2015, 43184), (2480, 35087), (2699, 32240), (3224, 26990), (4030, 21592), (5398, 16120), (6448, 13495), (8060, 10796)]