20299428

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:877

約数の個数: 72

約数和(自身を含む): 55724760

約数和(自身を除く): 35425332

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 41, 51, 68, 82, 102, 123, 153, 164, 204, 246, 306, 369, 492, 612, 697, 738, 809, 1394, 1476, 1618, 2091, 2427, 2788, 3236, 4182, 4854, 6273, 7281, 8364, 9708, 12546, 13753, 14562, 25092, 27506, 29124, 33169, 41259, 55012, 66338, 82518, 99507, 123777, 132676, 165036, 199014, 247554, 298521, 398028, 495108, 563873, 597042, 1127746, 1194084, 1691619, 2255492, 3383238, 5074857, 6766476, 10149714, 20299428]

約数ペア:

[(1, 20299428), (2, 10149714), (3, 6766476), (4, 5074857), (6, 3383238), (9, 2255492), (12, 1691619), (17, 1194084), (18, 1127746), (34, 597042), (36, 563873), (41, 495108), (51, 398028), (68, 298521), (82, 247554), (102, 199014), (123, 165036), (153, 132676), (164, 123777), (204, 99507), (246, 82518), (306, 66338), (369, 55012), (492, 41259), (612, 33169), (697, 29124), (738, 27506), (809, 25092), (1394, 14562), (1476, 13753), (1618, 12546), (2091, 9708), (2427, 8364), (2788, 7281), (3236, 6273), (4182, 4854)]