80555720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1663}}^1$

素因数の和:1854

約数の個数: 64

約数和(自身を含む): 208465920

約数和(自身を除く): 127910200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 173, 280, 346, 692, 865, 1211, 1384, 1663, 1730, 2422, 3326, 3460, 4844, 6055, 6652, 6920, 8315, 9688, 11641, 12110, 13304, 16630, 23282, 24220, 33260, 46564, 48440, 58205, 66520, 93128, 116410, 232820, 287699, 465640, 575398, 1150796, 1438495, 2013893, 2301592, 2876990, 4027786, 5753980, 8055572, 10069465, 11507960, 16111144, 20138930, 40277860, 80555720]

約数ペア:

[(1, 80555720), (2, 40277860), (4, 20138930), (5, 16111144), (7, 11507960), (8, 10069465), (10, 8055572), (14, 5753980), (20, 4027786), (28, 2876990), (35, 2301592), (40, 2013893), (56, 1438495), (70, 1150796), (140, 575398), (173, 465640), (280, 287699), (346, 232820), (692, 116410), (865, 93128), (1211, 66520), (1384, 58205), (1663, 48440), (1730, 46564), (2422, 33260), (3326, 24220), (3460, 23282), (4844, 16630), (6055, 13304), (6652, 12110), (6920, 11641), (8315, 9688)]