9218990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 19247760

約数和(自身を除く): 10028770

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 401, 418, 605, 802, 1045, 1210, 2005, 2090, 2299, 4010, 4411, 4598, 7619, 8822, 11495, 15238, 22055, 22990, 38095, 44110, 48521, 76190, 83809, 97042, 167618, 242605, 419045, 485210, 838090, 921899, 1843798, 4609495, 9218990]

約数ペア:

[(1, 9218990), (2, 4609495), (5, 1843798), (10, 921899), (11, 838090), (19, 485210), (22, 419045), (38, 242605), (55, 167618), (95, 97042), (110, 83809), (121, 76190), (190, 48521), (209, 44110), (242, 38095), (401, 22990), (418, 22055), (605, 15238), (802, 11495), (1045, 8822), (1210, 7619), (2005, 4598), (2090, 4411), (2299, 4010)]