81456060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193943}}^1$

素因数の和:193962

約数の個数: 48

約数和(自身を含む): 260660736

約数和(自身を除く): 179204676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193943, 387886, 581829, 775772, 969715, 1163658, 1357601, 1939430, 2327316, 2715202, 2909145, 3878860, 4072803, 5430404, 5818290, 6788005, 8145606, 11636580, 13576010, 16291212, 20364015, 27152020, 40728030, 81456060]

約数ペア:

[(1, 81456060), (2, 40728030), (3, 27152020), (4, 20364015), (5, 16291212), (6, 13576010), (7, 11636580), (10, 8145606), (12, 6788005), (14, 5818290), (15, 5430404), (20, 4072803), (21, 3878860), (28, 2909145), (30, 2715202), (35, 2327316), (42, 1939430), (60, 1357601), (70, 1163658), (84, 969715), (105, 775772), (140, 581829), (210, 387886), (420, 193943)]