17976860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 42208992

約数和(自身を除く): 24232132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1804, 1993, 2255, 3986, 4510, 7972, 9020, 9965, 19930, 21923, 39860, 43846, 81713, 87692, 109615, 163426, 219230, 326852, 408565, 438460, 817130, 898843, 1634260, 1797686, 3595372, 4494215, 8988430, 17976860]

約数ペア:

[(1, 17976860), (2, 8988430), (4, 4494215), (5, 3595372), (10, 1797686), (11, 1634260), (20, 898843), (22, 817130), (41, 438460), (44, 408565), (55, 326852), (82, 219230), (110, 163426), (164, 109615), (205, 87692), (220, 81713), (410, 43846), (451, 39860), (820, 21923), (902, 19930), (1804, 9965), (1993, 9020), (2255, 7972), (3986, 4510)]