19837830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 49932288

約数和(自身を除く): 30094458

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 83, 93, 155, 166, 186, 249, 257, 310, 415, 465, 498, 514, 771, 830, 930, 1245, 1285, 1542, 2490, 2570, 2573, 3855, 5146, 7710, 7719, 7967, 12865, 15438, 15934, 21331, 23901, 25730, 38595, 39835, 42662, 47802, 63993, 77190, 79670, 106655, 119505, 127986, 213310, 239010, 319965, 639930, 661261, 1322522, 1983783, 3306305, 3967566, 6612610, 9918915, 19837830]

約数ペア:

[(1, 19837830), (2, 9918915), (3, 6612610), (5, 3967566), (6, 3306305), (10, 1983783), (15, 1322522), (30, 661261), (31, 639930), (62, 319965), (83, 239010), (93, 213310), (155, 127986), (166, 119505), (186, 106655), (249, 79670), (257, 77190), (310, 63993), (415, 47802), (465, 42662), (498, 39835), (514, 38595), (771, 25730), (830, 23901), (930, 21331), (1245, 15934), (1285, 15438), (1542, 12865), (2490, 7967), (2570, 7719), (2573, 7710), (3855, 5146)]