128367890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:399

約数の個数: 64

約数和(自身を含む): 270950400

約数和(自身を除く): 142582510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 139, 158, 167, 278, 334, 395, 553, 695, 790, 835, 973, 1106, 1169, 1390, 1670, 1946, 2338, 2765, 4865, 5530, 5845, 9730, 10981, 11690, 13193, 21962, 23213, 26386, 46426, 54905, 65965, 76867, 92351, 109810, 116065, 131930, 153734, 162491, 184702, 232130, 324982, 384335, 461755, 768670, 812455, 923510, 1624910, 1833827, 3667654, 9169135, 12836789, 18338270, 25673578, 64183945, 128367890]

約数ペア:

[(1, 128367890), (2, 64183945), (5, 25673578), (7, 18338270), (10, 12836789), (14, 9169135), (35, 3667654), (70, 1833827), (79, 1624910), (139, 923510), (158, 812455), (167, 768670), (278, 461755), (334, 384335), (395, 324982), (553, 232130), (695, 184702), (790, 162491), (835, 153734), (973, 131930), (1106, 116065), (1169, 109810), (1390, 92351), (1670, 76867), (1946, 65965), (2338, 54905), (2765, 46426), (4865, 26386), (5530, 23213), (5845, 21962), (9730, 13193), (10981, 11690)]