686367240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1973}}^1$

素因数の和:2223

約数の個数: 128

約数和(自身を含む): 2228567040

約数和(自身を除く): 1542199800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 223, 260, 312, 390, 446, 520, 669, 780, 892, 1115, 1338, 1560, 1784, 1973, 2230, 2676, 2899, 3345, 3946, 4460, 5352, 5798, 5919, 6690, 7892, 8697, 8920, 9865, 11596, 11838, 13380, 14495, 15784, 17394, 19730, 23192, 23676, 25649, 26760, 28990, 29595, 34788, 39460, 43485, 47352, 51298, 57980, 59190, 69576, 76947, 78920, 86970, 102596, 115960, 118380, 128245, 153894, 173940, 205192, 236760, 256490, 307788, 347880, 384735, 439979, 512980, 615576, 769470, 879958, 1025960, 1319937, 1538940, 1759916, 2199895, 2639874, 3077880, 3519832, 4399790, 5279748, 5719727, 6599685, 8799580, 10559496, 11439454, 13199370, 17159181, 17599160, 22878908, 26398740, 28598635, 34318362, 45757816, 52797480, 57197270, 68636724, 85795905, 114394540, 137273448, 171591810, 228789080, 343183620, 686367240]

約数ペア:

[(1, 686367240), (2, 343183620), (3, 228789080), (4, 171591810), (5, 137273448), (6, 114394540), (8, 85795905), (10, 68636724), (12, 57197270), (13, 52797480), (15, 45757816), (20, 34318362), (24, 28598635), (26, 26398740), (30, 22878908), (39, 17599160), (40, 17159181), (52, 13199370), (60, 11439454), (65, 10559496), (78, 8799580), (104, 6599685), (120, 5719727), (130, 5279748), (156, 4399790), (195, 3519832), (223, 3077880), (260, 2639874), (312, 2199895), (390, 1759916), (446, 1538940), (520, 1319937), (669, 1025960), (780, 879958), (892, 769470), (1115, 615576), (1338, 512980), (1560, 439979), (1784, 384735), (1973, 347880), (2230, 307788), (2676, 256490), (2899, 236760), (3345, 205192), (3946, 173940), (4460, 153894), (5352, 128245), (5798, 118380), (5919, 115960), (6690, 102596), (7892, 86970), (8697, 78920), (8920, 76947), (9865, 69576), (11596, 59190), (11838, 57980), (13380, 51298), (14495, 47352), (15784, 43485), (17394, 39460), (19730, 34788), (23192, 29595), (23676, 28990), (25649, 26760)]