18910140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:299

約数の個数: 96

約数和(自身を含む): 56318976

約数和(自身を除く): 37408836

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 71, 92, 115, 138, 142, 193, 213, 230, 276, 284, 345, 355, 386, 426, 460, 579, 690, 710, 772, 852, 965, 1065, 1158, 1380, 1420, 1633, 1930, 2130, 2316, 2895, 3266, 3860, 4260, 4439, 4899, 5790, 6532, 8165, 8878, 9798, 11580, 13317, 13703, 16330, 17756, 19596, 22195, 24495, 26634, 27406, 32660, 41109, 44390, 48990, 53268, 54812, 66585, 68515, 82218, 88780, 97980, 133170, 137030, 164436, 205545, 266340, 274060, 315169, 411090, 630338, 822180, 945507, 1260676, 1575845, 1891014, 3151690, 3782028, 4727535, 6303380, 9455070, 18910140]

約数ペア:

[(1, 18910140), (2, 9455070), (3, 6303380), (4, 4727535), (5, 3782028), (6, 3151690), (10, 1891014), (12, 1575845), (15, 1260676), (20, 945507), (23, 822180), (30, 630338), (46, 411090), (60, 315169), (69, 274060), (71, 266340), (92, 205545), (115, 164436), (138, 137030), (142, 133170), (193, 97980), (213, 88780), (230, 82218), (276, 68515), (284, 66585), (345, 54812), (355, 53268), (386, 48990), (426, 44390), (460, 41109), (579, 32660), (690, 27406), (710, 26634), (772, 24495), (852, 22195), (965, 19596), (1065, 17756), (1158, 16330), (1380, 13703), (1420, 13317), (1633, 11580), (1930, 9798), (2130, 8878), (2316, 8165), (2895, 6532), (3266, 5790), (3860, 4899), (4260, 4439)]