28742800

素因数分解:

$2^4\times 5^2\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:596

約数の個数: 60

約数和(自身を含む): 69610996

約数和(自身を除く): 40868196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 181, 200, 362, 397, 400, 724, 794, 905, 1448, 1588, 1810, 1985, 2896, 3176, 3620, 3970, 4525, 6352, 7240, 7940, 9050, 9925, 14480, 15880, 18100, 19850, 31760, 36200, 39700, 71857, 72400, 79400, 143714, 158800, 287428, 359285, 574856, 718570, 1149712, 1437140, 1796425, 2874280, 3592850, 5748560, 7185700, 14371400, 28742800]

約数ペア:

[(1, 28742800), (2, 14371400), (4, 7185700), (5, 5748560), (8, 3592850), (10, 2874280), (16, 1796425), (20, 1437140), (25, 1149712), (40, 718570), (50, 574856), (80, 359285), (100, 287428), (181, 158800), (200, 143714), (362, 79400), (397, 72400), (400, 71857), (724, 39700), (794, 36200), (905, 31760), (1448, 19850), (1588, 18100), (1810, 15880), (1985, 14480), (2896, 9925), (3176, 9050), (3620, 7940), (3970, 7240), (4525, 6352)]