18183880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 51447060

約数和(自身を除く): 33263180

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 85, 88, 104, 110, 121, 130, 136, 143, 170, 187, 220, 221, 242, 260, 286, 289, 340, 374, 440, 442, 484, 520, 572, 578, 605, 680, 715, 748, 884, 935, 968, 1105, 1144, 1156, 1210, 1430, 1445, 1496, 1573, 1768, 1870, 2057, 2210, 2312, 2420, 2431, 2860, 2890, 3146, 3179, 3740, 3757, 4114, 4420, 4840, 4862, 5720, 5780, 6292, 6358, 7480, 7514, 7865, 8228, 8840, 9724, 10285, 11560, 12155, 12584, 12716, 15028, 15730, 15895, 16456, 18785, 19448, 20570, 24310, 25432, 26741, 30056, 31460, 31790, 34969, 37570, 41140, 41327, 48620, 53482, 62920, 63580, 69938, 75140, 82280, 82654, 97240, 106964, 127160, 133705, 139876, 150280, 165308, 174845, 206635, 213928, 267410, 279752, 330616, 349690, 413270, 454597, 534820, 699380, 826540, 909194, 1069640, 1398760, 1653080, 1818388, 2272985, 3636776, 4545970, 9091940, 18183880]

約数ペア:

[(1, 18183880), (2, 9091940), (4, 4545970), (5, 3636776), (8, 2272985), (10, 1818388), (11, 1653080), (13, 1398760), (17, 1069640), (20, 909194), (22, 826540), (26, 699380), (34, 534820), (40, 454597), (44, 413270), (52, 349690), (55, 330616), (65, 279752), (68, 267410), (85, 213928), (88, 206635), (104, 174845), (110, 165308), (121, 150280), (130, 139876), (136, 133705), (143, 127160), (170, 106964), (187, 97240), (220, 82654), (221, 82280), (242, 75140), (260, 69938), (286, 63580), (289, 62920), (340, 53482), (374, 48620), (440, 41327), (442, 41140), (484, 37570), (520, 34969), (572, 31790), (578, 31460), (605, 30056), (680, 26741), (715, 25432), (748, 24310), (884, 20570), (935, 19448), (968, 18785), (1105, 16456), (1144, 15895), (1156, 15730), (1210, 15028), (1430, 12716), (1445, 12584), (1496, 12155), (1573, 11560), (1768, 10285), (1870, 9724), (2057, 8840), (2210, 8228), (2312, 7865), (2420, 7514), (2431, 7480), (2860, 6358), (2890, 6292), (3146, 5780), (3179, 5720), (3740, 4862), (3757, 4840), (4114, 4420)]