124366820

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 266943600

約数和(自身を除く): 142576780

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 545, 641, 890, 1090, 1282, 1780, 2180, 2564, 3205, 6410, 9701, 12820, 19402, 38804, 48505, 57049, 69869, 97010, 114098, 139738, 194020, 228196, 279476, 285245, 349345, 570490, 698690, 1140980, 1397380, 6218341, 12436682, 24873364, 31091705, 62183410, 124366820]

約数ペア:

[(1, 124366820), (2, 62183410), (4, 31091705), (5, 24873364), (10, 12436682), (20, 6218341), (89, 1397380), (109, 1140980), (178, 698690), (218, 570490), (356, 349345), (436, 285245), (445, 279476), (545, 228196), (641, 194020), (890, 139738), (1090, 114098), (1282, 97010), (1780, 69869), (2180, 57049), (2564, 48505), (3205, 38804), (6410, 19402), (9701, 12820)]