15988140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{12689}}^1$

素因数の和:12711

約数の個数: 72

約数和(自身を含む): 55429920

約数和(自身を除く): 39441780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 12689, 25378, 38067, 50756, 63445, 76134, 88823, 114201, 126890, 152268, 177646, 190335, 228402, 253780, 266469, 355292, 380670, 444115, 456804, 532938, 571005, 761340, 799407, 888230, 1065876, 1142010, 1332345, 1598814, 1776460, 2284020, 2664690, 3197628, 3997035, 5329380, 7994070, 15988140]

約数ペア:

[(1, 15988140), (2, 7994070), (3, 5329380), (4, 3997035), (5, 3197628), (6, 2664690), (7, 2284020), (9, 1776460), (10, 1598814), (12, 1332345), (14, 1142010), (15, 1065876), (18, 888230), (20, 799407), (21, 761340), (28, 571005), (30, 532938), (35, 456804), (36, 444115), (42, 380670), (45, 355292), (60, 266469), (63, 253780), (70, 228402), (84, 190335), (90, 177646), (105, 152268), (126, 126890), (140, 114201), (180, 88823), (210, 76134), (252, 63445), (315, 50756), (420, 38067), (630, 25378), (1260, 12689)]