1388651640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{48017}}^1$

素因数の和:48272

約数の個数: 64

約数和(自身を含む): 4183328160

約数和(自身を除く): 2794676520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 241, 482, 723, 964, 1205, 1446, 1928, 2410, 2892, 3615, 4820, 5784, 7230, 9640, 14460, 28920, 48017, 96034, 144051, 192068, 240085, 288102, 384136, 480170, 576204, 720255, 960340, 1152408, 1440510, 1920680, 2881020, 5762040, 11572097, 23144194, 34716291, 46288388, 57860485, 69432582, 92576776, 115720970, 138865164, 173581455, 231441940, 277730328, 347162910, 462883880, 694325820, 1388651640]

約数ペア:

[(1, 1388651640), (2, 694325820), (3, 462883880), (4, 347162910), (5, 277730328), (6, 231441940), (8, 173581455), (10, 138865164), (12, 115720970), (15, 92576776), (20, 69432582), (24, 57860485), (30, 46288388), (40, 34716291), (60, 23144194), (120, 11572097), (241, 5762040), (482, 2881020), (723, 1920680), (964, 1440510), (1205, 1152408), (1446, 960340), (1928, 720255), (2410, 576204), (2892, 480170), (3615, 384136), (4820, 288102), (5784, 240085), (7230, 192068), (9640, 144051), (14460, 96034), (28920, 48017)]