679983140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{12323}}^1$

素因数の和:12452

約数の個数: 48

約数和(自身を含む): 1490711040

約数和(自身を除く): 810727900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 310, 356, 445, 620, 890, 1780, 2759, 5518, 11036, 12323, 13795, 24646, 27590, 49292, 55180, 61615, 123230, 246460, 382013, 764026, 1096747, 1528052, 1910065, 2193494, 3820130, 4386988, 5483735, 7640260, 10967470, 21934940, 33999157, 67998314, 135996628, 169995785, 339991570, 679983140]

約数ペア:

[(1, 679983140), (2, 339991570), (4, 169995785), (5, 135996628), (10, 67998314), (20, 33999157), (31, 21934940), (62, 10967470), (89, 7640260), (124, 5483735), (155, 4386988), (178, 3820130), (310, 2193494), (356, 1910065), (445, 1528052), (620, 1096747), (890, 764026), (1780, 382013), (2759, 246460), (5518, 123230), (11036, 61615), (12323, 55180), (13795, 49292), (24646, 27590)]