18988470

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^2$

素因数の和:194

約数の個数: 72

約数和(自身を含む): 51184224

約数和(自身を除く): 32195754

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 47, 67, 90, 94, 134, 141, 201, 235, 282, 335, 402, 423, 470, 603, 670, 705, 846, 1005, 1206, 1410, 2010, 2115, 3015, 3149, 4230, 4489, 6030, 6298, 8978, 9447, 13467, 15745, 18894, 22445, 26934, 28341, 31490, 40401, 44890, 47235, 56682, 67335, 80802, 94470, 134670, 141705, 202005, 210983, 283410, 404010, 421966, 632949, 1054915, 1265898, 1898847, 2109830, 3164745, 3797694, 6329490, 9494235, 18988470]

約数ペア:

[(1, 18988470), (2, 9494235), (3, 6329490), (5, 3797694), (6, 3164745), (9, 2109830), (10, 1898847), (15, 1265898), (18, 1054915), (30, 632949), (45, 421966), (47, 404010), (67, 283410), (90, 210983), (94, 202005), (134, 141705), (141, 134670), (201, 94470), (235, 80802), (282, 67335), (335, 56682), (402, 47235), (423, 44890), (470, 40401), (603, 31490), (670, 28341), (705, 26934), (846, 22445), (1005, 18894), (1206, 15745), (1410, 13467), (2010, 9447), (2115, 8978), (3015, 6298), (3149, 6030), (4230, 4489)]