20179215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 42251040

約数和(自身を除く): 22071825

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 47, 63, 87, 105, 141, 145, 203, 235, 261, 315, 329, 423, 435, 609, 705, 987, 1015, 1305, 1363, 1645, 1827, 2115, 2209, 2961, 3045, 4089, 4935, 6627, 6815, 9135, 9541, 11045, 12267, 14805, 15463, 19881, 20445, 28623, 33135, 46389, 47705, 61335, 64061, 77315, 85869, 99405, 139167, 143115, 192183, 231945, 320305, 429345, 448427, 576549, 695835, 960915, 1345281, 2242135, 2882745, 4035843, 6726405, 20179215]

約数ペア:

[(1, 20179215), (3, 6726405), (5, 4035843), (7, 2882745), (9, 2242135), (15, 1345281), (21, 960915), (29, 695835), (35, 576549), (45, 448427), (47, 429345), (63, 320305), (87, 231945), (105, 192183), (141, 143115), (145, 139167), (203, 99405), (235, 85869), (261, 77315), (315, 64061), (329, 61335), (423, 47705), (435, 46389), (609, 33135), (705, 28623), (987, 20445), (1015, 19881), (1305, 15463), (1363, 14805), (1645, 12267), (1827, 11045), (2115, 9541), (2209, 9135), (2961, 6815), (3045, 6627), (4089, 4935)]