31400980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 76204800

約数和(自身を除く): 44803820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 59, 65, 89, 92, 115, 118, 130, 178, 230, 236, 260, 295, 299, 356, 445, 460, 590, 598, 767, 890, 1157, 1180, 1196, 1357, 1495, 1534, 1780, 2047, 2314, 2714, 2990, 3068, 3835, 4094, 4628, 5251, 5428, 5785, 5980, 6785, 7670, 8188, 10235, 10502, 11570, 13570, 15340, 17641, 20470, 21004, 23140, 26255, 26611, 27140, 35282, 40940, 52510, 53222, 68263, 70564, 88205, 105020, 106444, 120773, 133055, 136526, 176410, 241546, 266110, 273052, 341315, 352820, 483092, 532220, 603865, 682630, 1207730, 1365260, 1570049, 2415460, 3140098, 6280196, 7850245, 15700490, 31400980]

約数ペア:

[(1, 31400980), (2, 15700490), (4, 7850245), (5, 6280196), (10, 3140098), (13, 2415460), (20, 1570049), (23, 1365260), (26, 1207730), (46, 682630), (52, 603865), (59, 532220), (65, 483092), (89, 352820), (92, 341315), (115, 273052), (118, 266110), (130, 241546), (178, 176410), (230, 136526), (236, 133055), (260, 120773), (295, 106444), (299, 105020), (356, 88205), (445, 70564), (460, 68263), (590, 53222), (598, 52510), (767, 40940), (890, 35282), (1157, 27140), (1180, 26611), (1196, 26255), (1357, 23140), (1495, 21004), (1534, 20470), (1780, 17641), (2047, 15340), (2314, 13570), (2714, 11570), (2990, 10502), (3068, 10235), (3835, 8188), (4094, 7670), (4628, 6785), (5251, 5980), (5428, 5785)]