20435140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3203}}^1$

素因数の和:3252

約数の個数: 48

約数和(自身を含む): 48444480

約数和(自身を除く): 28009340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3203, 6380, 6406, 12812, 16015, 32030, 35233, 64060, 70466, 92887, 140932, 176165, 185774, 352330, 371548, 464435, 704660, 928870, 1021757, 1857740, 2043514, 4087028, 5108785, 10217570, 20435140]

約数ペア:

[(1, 20435140), (2, 10217570), (4, 5108785), (5, 4087028), (10, 2043514), (11, 1857740), (20, 1021757), (22, 928870), (29, 704660), (44, 464435), (55, 371548), (58, 352330), (110, 185774), (116, 176165), (145, 140932), (220, 92887), (290, 70466), (319, 64060), (580, 35233), (638, 32030), (1276, 16015), (1595, 12812), (3190, 6406), (3203, 6380)]