15780760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1009}}^1$

素因数の和:1060

約数の個数: 64

約数和(自身を含む): 39268800

約数和(自身を除く): 23488040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1009, 1564, 1955, 2018, 3128, 3910, 4036, 5045, 7820, 8072, 10090, 15640, 17153, 20180, 23207, 34306, 40360, 46414, 68612, 85765, 92828, 116035, 137224, 171530, 185656, 232070, 343060, 394519, 464140, 686120, 789038, 928280, 1578076, 1972595, 3156152, 3945190, 7890380, 15780760]

約数ペア:

[(1, 15780760), (2, 7890380), (4, 3945190), (5, 3156152), (8, 1972595), (10, 1578076), (17, 928280), (20, 789038), (23, 686120), (34, 464140), (40, 394519), (46, 343060), (68, 232070), (85, 185656), (92, 171530), (115, 137224), (136, 116035), (170, 92828), (184, 85765), (230, 68612), (340, 46414), (391, 40360), (460, 34306), (680, 23207), (782, 20180), (920, 17153), (1009, 15640), (1564, 10090), (1955, 8072), (2018, 7820), (3128, 5045), (3910, 4036)]