28543700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 66349920

約数和(自身を除く): 37806220

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 83, 95, 100, 166, 181, 190, 332, 362, 380, 415, 475, 724, 830, 905, 950, 1577, 1660, 1810, 1900, 2075, 3154, 3439, 3620, 4150, 4525, 6308, 6878, 7885, 8300, 9050, 13756, 15023, 15770, 17195, 18100, 30046, 31540, 34390, 39425, 60092, 68780, 75115, 78850, 85975, 150230, 157700, 171950, 285437, 300460, 343900, 375575, 570874, 751150, 1141748, 1427185, 1502300, 2854370, 5708740, 7135925, 14271850, 28543700]

約数ペア:

[(1, 28543700), (2, 14271850), (4, 7135925), (5, 5708740), (10, 2854370), (19, 1502300), (20, 1427185), (25, 1141748), (38, 751150), (50, 570874), (76, 375575), (83, 343900), (95, 300460), (100, 285437), (166, 171950), (181, 157700), (190, 150230), (332, 85975), (362, 78850), (380, 75115), (415, 68780), (475, 60092), (724, 39425), (830, 34390), (905, 31540), (950, 30046), (1577, 18100), (1660, 17195), (1810, 15770), (1900, 15023), (2075, 13756), (3154, 9050), (3439, 8300), (3620, 7885), (4150, 6878), (4525, 6308)]