19810740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4523}}^1$

素因数の和:4608

約数の個数: 48

約数和(自身を含む): 56242368

約数和(自身を除く): 36431628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4523, 9046, 13569, 18092, 22615, 27138, 45230, 54276, 67845, 90460, 135690, 271380, 330179, 660358, 990537, 1320716, 1650895, 1981074, 3301790, 3962148, 4952685, 6603580, 9905370, 19810740]

約数ペア:

[(1, 19810740), (2, 9905370), (3, 6603580), (4, 4952685), (5, 3962148), (6, 3301790), (10, 1981074), (12, 1650895), (15, 1320716), (20, 990537), (30, 660358), (60, 330179), (73, 271380), (146, 135690), (219, 90460), (292, 67845), (365, 54276), (438, 45230), (730, 27138), (876, 22615), (1095, 18092), (1460, 13569), (2190, 9046), (4380, 4523)]