20771550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1489}}^1$

素因数の和:1538

約数の個数: 72

約数和(自身を含む): 57645120

約数和(自身を除く): 36873570

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 31, 45, 50, 62, 75, 90, 93, 150, 155, 186, 225, 279, 310, 450, 465, 558, 775, 930, 1395, 1489, 1550, 2325, 2790, 2978, 4467, 4650, 6975, 7445, 8934, 13401, 13950, 14890, 22335, 26802, 37225, 44670, 46159, 67005, 74450, 92318, 111675, 134010, 138477, 223350, 230795, 276954, 335025, 415431, 461590, 670050, 692385, 830862, 1153975, 1384770, 2077155, 2307950, 3461925, 4154310, 6923850, 10385775, 20771550]

約数ペア:

[(1, 20771550), (2, 10385775), (3, 6923850), (5, 4154310), (6, 3461925), (9, 2307950), (10, 2077155), (15, 1384770), (18, 1153975), (25, 830862), (30, 692385), (31, 670050), (45, 461590), (50, 415431), (62, 335025), (75, 276954), (90, 230795), (93, 223350), (150, 138477), (155, 134010), (186, 111675), (225, 92318), (279, 74450), (310, 67005), (450, 46159), (465, 44670), (558, 37225), (775, 26802), (930, 22335), (1395, 14890), (1489, 13950), (1550, 13401), (2325, 8934), (2790, 7445), (2978, 6975), (4467, 4650)]