18400644

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 49375872

約数和(自身を除く): 30975228

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 71, 92, 138, 142, 207, 213, 276, 284, 313, 414, 426, 626, 639, 828, 852, 939, 1252, 1278, 1633, 1878, 2556, 2817, 3266, 3756, 4899, 5634, 6532, 7199, 9798, 11268, 14398, 14697, 19596, 21597, 22223, 28796, 29394, 43194, 44446, 58788, 64791, 66669, 86388, 88892, 129582, 133338, 200007, 259164, 266676, 400014, 511129, 800028, 1022258, 1533387, 2044516, 3066774, 4600161, 6133548, 9200322, 18400644]

約数ペア:

[(1, 18400644), (2, 9200322), (3, 6133548), (4, 4600161), (6, 3066774), (9, 2044516), (12, 1533387), (18, 1022258), (23, 800028), (36, 511129), (46, 400014), (69, 266676), (71, 259164), (92, 200007), (138, 133338), (142, 129582), (207, 88892), (213, 86388), (276, 66669), (284, 64791), (313, 58788), (414, 44446), (426, 43194), (626, 29394), (639, 28796), (828, 22223), (852, 21597), (939, 19596), (1252, 14697), (1278, 14398), (1633, 11268), (1878, 9798), (2556, 7199), (2817, 6532), (3266, 5634), (3756, 4899)]