28421620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{467}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 63685440

約数和(自身を除く): 35263820

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 340, 358, 467, 716, 895, 934, 1790, 1868, 2335, 3043, 3580, 4670, 6086, 7939, 9340, 12172, 15215, 15878, 30430, 31756, 39695, 60860, 79390, 83593, 158780, 167186, 334372, 417965, 835930, 1421081, 1671860, 2842162, 5684324, 7105405, 14210810, 28421620]

約数ペア:

[(1, 28421620), (2, 14210810), (4, 7105405), (5, 5684324), (10, 2842162), (17, 1671860), (20, 1421081), (34, 835930), (68, 417965), (85, 334372), (170, 167186), (179, 158780), (340, 83593), (358, 79390), (467, 60860), (716, 39695), (895, 31756), (934, 30430), (1790, 15878), (1868, 15215), (2335, 12172), (3043, 9340), (3580, 7939), (4670, 6086)]