291226280

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{743}}^1$

素因数の和:1034

約数の個数: 64

約数和(自身を含む): 674956800

約数和(自身を除く): 383730520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 239, 328, 410, 478, 743, 820, 956, 1195, 1486, 1640, 1912, 2390, 2972, 3715, 4780, 5944, 7430, 9560, 9799, 14860, 19598, 29720, 30463, 39196, 48995, 60926, 78392, 97990, 121852, 152315, 177577, 195980, 243704, 304630, 355154, 391960, 609260, 710308, 887885, 1218520, 1420616, 1775770, 3551540, 7103080, 7280657, 14561314, 29122628, 36403285, 58245256, 72806570, 145613140, 291226280]

約数ペア:

[(1, 291226280), (2, 145613140), (4, 72806570), (5, 58245256), (8, 36403285), (10, 29122628), (20, 14561314), (40, 7280657), (41, 7103080), (82, 3551540), (164, 1775770), (205, 1420616), (239, 1218520), (328, 887885), (410, 710308), (478, 609260), (743, 391960), (820, 355154), (956, 304630), (1195, 243704), (1486, 195980), (1640, 177577), (1912, 152315), (2390, 121852), (2972, 97990), (3715, 78392), (4780, 60926), (5944, 48995), (7430, 39196), (9560, 30463), (9799, 29720), (14860, 19598)]