19087420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1637}}^1$

素因数の和:1710

約数の個数: 48

約数和(自身を含む): 44579808

約数和(自身を除く): 25492388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1637, 2332, 2915, 3274, 5830, 6548, 8185, 11660, 16370, 18007, 32740, 36014, 72028, 86761, 90035, 173522, 180070, 347044, 360140, 433805, 867610, 954371, 1735220, 1908742, 3817484, 4771855, 9543710, 19087420]

約数ペア:

[(1, 19087420), (2, 9543710), (4, 4771855), (5, 3817484), (10, 1908742), (11, 1735220), (20, 954371), (22, 867610), (44, 433805), (53, 360140), (55, 347044), (106, 180070), (110, 173522), (212, 90035), (220, 86761), (265, 72028), (530, 36014), (583, 32740), (1060, 18007), (1166, 16370), (1637, 11660), (2332, 8185), (2915, 6548), (3274, 5830)]