19865220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3989}}^1$

素因数の和:4084

約数の個数: 48

約数和(自身を含む): 56306880

約数和(自身を除く): 36441660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 83, 166, 249, 332, 415, 498, 830, 996, 1245, 1660, 2490, 3989, 4980, 7978, 11967, 15956, 19945, 23934, 39890, 47868, 59835, 79780, 119670, 239340, 331087, 662174, 993261, 1324348, 1655435, 1986522, 3310870, 3973044, 4966305, 6621740, 9932610, 19865220]

約数ペア:

[(1, 19865220), (2, 9932610), (3, 6621740), (4, 4966305), (5, 3973044), (6, 3310870), (10, 1986522), (12, 1655435), (15, 1324348), (20, 993261), (30, 662174), (60, 331087), (83, 239340), (166, 119670), (249, 79780), (332, 59835), (415, 47868), (498, 39890), (830, 23934), (996, 19945), (1245, 15956), (1660, 11967), (2490, 7978), (3989, 4980)]