20488980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1091}}^1$

素因数の和:1416

約数の個数: 48

約数和(自身を含む): 57605184

約数和(自身を除く): 37116204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 313, 626, 939, 1091, 1252, 1565, 1878, 2182, 3130, 3273, 3756, 4364, 4695, 5455, 6260, 6546, 9390, 10910, 13092, 16365, 18780, 21820, 32730, 65460, 341483, 682966, 1024449, 1365932, 1707415, 2048898, 3414830, 4097796, 5122245, 6829660, 10244490, 20488980]

約数ペア:

[(1, 20488980), (2, 10244490), (3, 6829660), (4, 5122245), (5, 4097796), (6, 3414830), (10, 2048898), (12, 1707415), (15, 1365932), (20, 1024449), (30, 682966), (60, 341483), (313, 65460), (626, 32730), (939, 21820), (1091, 18780), (1252, 16365), (1565, 13092), (1878, 10910), (2182, 9390), (3130, 6546), (3273, 6260), (3756, 5455), (4364, 4695)]