18739920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 80

約数和(自身を含む): 58692672

約数和(自身を除く): 39952752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 113, 120, 226, 240, 339, 452, 565, 678, 691, 904, 1130, 1356, 1382, 1695, 1808, 2073, 2260, 2712, 2764, 3390, 3455, 4146, 4520, 5424, 5528, 6780, 6910, 8292, 9040, 10365, 11056, 13560, 13820, 16584, 20730, 27120, 27640, 33168, 41460, 55280, 78083, 82920, 156166, 165840, 234249, 312332, 390415, 468498, 624664, 780830, 936996, 1171245, 1249328, 1561660, 1873992, 2342490, 3123320, 3747984, 4684980, 6246640, 9369960, 18739920]

約数ペア:

[(1, 18739920), (2, 9369960), (3, 6246640), (4, 4684980), (5, 3747984), (6, 3123320), (8, 2342490), (10, 1873992), (12, 1561660), (15, 1249328), (16, 1171245), (20, 936996), (24, 780830), (30, 624664), (40, 468498), (48, 390415), (60, 312332), (80, 234249), (113, 165840), (120, 156166), (226, 82920), (240, 78083), (339, 55280), (452, 41460), (565, 33168), (678, 27640), (691, 27120), (904, 20730), (1130, 16584), (1356, 13820), (1382, 13560), (1695, 11056), (1808, 10365), (2073, 9040), (2260, 8292), (2712, 6910), (2764, 6780), (3390, 5528), (3455, 5424), (4146, 4520)]