388980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2161}}^1$

素因数の和:2176

約数の個数: 36

約数和(自身を含む): 1180452

約数和(自身を除く): 791472

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2161, 4322, 6483, 8644, 10805, 12966, 19449, 21610, 25932, 32415, 38898, 43220, 64830, 77796, 97245, 129660, 194490, 388980]

約数ペア:

[(1, 388980), (2, 194490), (3, 129660), (4, 97245), (5, 77796), (6, 64830), (9, 43220), (10, 38898), (12, 32415), (15, 25932), (18, 21610), (20, 19449), (30, 12966), (36, 10805), (45, 8644), (60, 6483), (90, 4322), (180, 2161)]