15415540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 37296000

約数和(自身を除く): 21880460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 739, 745, 1043, 1478, 1490, 2086, 2956, 2980, 3695, 4172, 5173, 5215, 7390, 10346, 10430, 14780, 20692, 20860, 25865, 51730, 103460, 110111, 220222, 440444, 550555, 770777, 1101110, 1541554, 2202220, 3083108, 3853885, 7707770, 15415540]

約数ペア:

[(1, 15415540), (2, 7707770), (4, 3853885), (5, 3083108), (7, 2202220), (10, 1541554), (14, 1101110), (20, 770777), (28, 550555), (35, 440444), (70, 220222), (140, 110111), (149, 103460), (298, 51730), (596, 25865), (739, 20860), (745, 20692), (1043, 14780), (1478, 10430), (1490, 10346), (2086, 7390), (2956, 5215), (2980, 5173), (3695, 4172)]