20937900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{983}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 61496064

約数和(自身を除く): 40558164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 71, 75, 100, 142, 150, 213, 284, 300, 355, 426, 710, 852, 983, 1065, 1420, 1775, 1966, 2130, 2949, 3550, 3932, 4260, 4915, 5325, 5898, 7100, 9830, 10650, 11796, 14745, 19660, 21300, 24575, 29490, 49150, 58980, 69793, 73725, 98300, 139586, 147450, 209379, 279172, 294900, 348965, 418758, 697930, 837516, 1046895, 1395860, 1744825, 2093790, 3489650, 4187580, 5234475, 6979300, 10468950, 20937900]

約数ペア:

[(1, 20937900), (2, 10468950), (3, 6979300), (4, 5234475), (5, 4187580), (6, 3489650), (10, 2093790), (12, 1744825), (15, 1395860), (20, 1046895), (25, 837516), (30, 697930), (50, 418758), (60, 348965), (71, 294900), (75, 279172), (100, 209379), (142, 147450), (150, 139586), (213, 98300), (284, 73725), (300, 69793), (355, 58980), (426, 49150), (710, 29490), (852, 24575), (983, 21300), (1065, 19660), (1420, 14745), (1775, 11796), (1966, 10650), (2130, 9830), (2949, 7100), (3550, 5898), (3932, 5325), (4260, 4915)]