21796715540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{457}}^1\times {\mathrm{64453}}^1$

素因数の和:64956

約数の個数: 48

約数和(自身を含む): 47113811472

約数和(自身を除く): 25317095932

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 457, 740, 914, 1828, 2285, 4570, 9140, 16909, 33818, 64453, 67636, 84545, 128906, 169090, 257812, 322265, 338180, 644530, 1289060, 2384761, 4769522, 9539044, 11923805, 23847610, 29455021, 47695220, 58910042, 117820084, 147275105, 294550210, 589100420, 1089835777, 2179671554, 4359343108, 5449178885, 10898357770, 21796715540]

約数ペア:

[(1, 21796715540), (2, 10898357770), (4, 5449178885), (5, 4359343108), (10, 2179671554), (20, 1089835777), (37, 589100420), (74, 294550210), (148, 147275105), (185, 117820084), (370, 58910042), (457, 47695220), (740, 29455021), (914, 23847610), (1828, 11923805), (2285, 9539044), (4570, 4769522), (9140, 2384761), (16909, 1289060), (33818, 644530), (64453, 338180), (67636, 322265), (84545, 257812), (128906, 169090)]