168720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:72

約数の個数: 80

約数和(自身を含む): 565440

約数和(自身を除く): 396720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 37, 38, 40, 48, 57, 60, 74, 76, 80, 95, 111, 114, 120, 148, 152, 185, 190, 222, 228, 240, 285, 296, 304, 370, 380, 444, 456, 555, 570, 592, 703, 740, 760, 888, 912, 1110, 1140, 1406, 1480, 1520, 1776, 2109, 2220, 2280, 2812, 2960, 3515, 4218, 4440, 4560, 5624, 7030, 8436, 8880, 10545, 11248, 14060, 16872, 21090, 28120, 33744, 42180, 56240, 84360, 168720]

約数ペア:

[(1, 168720), (2, 84360), (3, 56240), (4, 42180), (5, 33744), (6, 28120), (8, 21090), (10, 16872), (12, 14060), (15, 11248), (16, 10545), (19, 8880), (20, 8436), (24, 7030), (30, 5624), (37, 4560), (38, 4440), (40, 4218), (48, 3515), (57, 2960), (60, 2812), (74, 2280), (76, 2220), (80, 2109), (95, 1776), (111, 1520), (114, 1480), (120, 1406), (148, 1140), (152, 1110), (185, 912), (190, 888), (222, 760), (228, 740), (240, 703), (285, 592), (296, 570), (304, 555), (370, 456), (380, 444)]