1555561215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71867}}^1$

素因数の和:71928

約数の個数: 48

約数和(自身を含む): 2982234528

約数和(自身を除く): 1426673313

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 65, 111, 117, 185, 195, 333, 481, 555, 585, 1443, 1665, 2405, 4329, 7215, 21645, 71867, 215601, 359335, 646803, 934271, 1078005, 2659079, 2802813, 3234015, 4671355, 7977237, 8408439, 13295395, 14014065, 23931711, 34568027, 39886185, 42042195, 103704081, 119658555, 172840135, 311112243, 518520405, 1555561215]

約数ペア:

[(1, 1555561215), (3, 518520405), (5, 311112243), (9, 172840135), (13, 119658555), (15, 103704081), (37, 42042195), (39, 39886185), (45, 34568027), (65, 23931711), (111, 14014065), (117, 13295395), (185, 8408439), (195, 7977237), (333, 4671355), (481, 3234015), (555, 2802813), (585, 2659079), (1443, 1078005), (1665, 934271), (2405, 646803), (4329, 359335), (7215, 215601), (21645, 71867)]