17990240

素因数分解:

$2^5\times 5^1\times {\mathrm{229}}^1\times {\mathrm{491}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 42774480

約数和(自身を除く): 24784240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 229, 458, 491, 916, 982, 1145, 1832, 1964, 2290, 2455, 3664, 3928, 4580, 4910, 7328, 7856, 9160, 9820, 15712, 18320, 19640, 36640, 39280, 78560, 112439, 224878, 449756, 562195, 899512, 1124390, 1799024, 2248780, 3598048, 4497560, 8995120, 17990240]

約数ペア:

[(1, 17990240), (2, 8995120), (4, 4497560), (5, 3598048), (8, 2248780), (10, 1799024), (16, 1124390), (20, 899512), (32, 562195), (40, 449756), (80, 224878), (160, 112439), (229, 78560), (458, 39280), (491, 36640), (916, 19640), (982, 18320), (1145, 15712), (1832, 9820), (1964, 9160), (2290, 7856), (2455, 7328), (3664, 4910), (3928, 4580)]