19915860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4547}}^1$

素因数の和:4632

約数の個数: 48

約数和(自身を含む): 56540736

約数和(自身を除く): 36624876

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, 4547, 9094, 13641, 18188, 22735, 27282, 45470, 54564, 68205, 90940, 136410, 272820, 331931, 663862, 995793, 1327724, 1659655, 1991586, 3319310, 3983172, 4978965, 6638620, 9957930, 19915860]

約数ペア:

[(1, 19915860), (2, 9957930), (3, 6638620), (4, 4978965), (5, 3983172), (6, 3319310), (10, 1991586), (12, 1659655), (15, 1327724), (20, 995793), (30, 663862), (60, 331931), (73, 272820), (146, 136410), (219, 90940), (292, 68205), (365, 54564), (438, 45470), (730, 27282), (876, 22735), (1095, 18188), (1460, 13641), (2190, 9094), (4380, 4547)]