87720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:74

約数の個数: 64

約数和(自身を含む): 285120

約数和(自身を除く): 197400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 255, 258, 340, 344, 408, 430, 510, 516, 645, 680, 731, 860, 1020, 1032, 1290, 1462, 1720, 2040, 2193, 2580, 2924, 3655, 4386, 5160, 5848, 7310, 8772, 10965, 14620, 17544, 21930, 29240, 43860, 87720]

約数ペア:

[(1, 87720), (2, 43860), (3, 29240), (4, 21930), (5, 17544), (6, 14620), (8, 10965), (10, 8772), (12, 7310), (15, 5848), (17, 5160), (20, 4386), (24, 3655), (30, 2924), (34, 2580), (40, 2193), (43, 2040), (51, 1720), (60, 1462), (68, 1290), (85, 1032), (86, 1020), (102, 860), (120, 731), (129, 680), (136, 645), (170, 516), (172, 510), (204, 430), (215, 408), (255, 344), (258, 340)]