240720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:92

約数の個数: 80

約数和(自身を含む): 803520

約数和(自身を除く): 562800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 59, 60, 68, 80, 85, 102, 118, 120, 136, 170, 177, 204, 236, 240, 255, 272, 295, 340, 354, 408, 472, 510, 590, 680, 708, 816, 885, 944, 1003, 1020, 1180, 1360, 1416, 1770, 2006, 2040, 2360, 2832, 3009, 3540, 4012, 4080, 4720, 5015, 6018, 7080, 8024, 10030, 12036, 14160, 15045, 16048, 20060, 24072, 30090, 40120, 48144, 60180, 80240, 120360, 240720]

約数ペア:

[(1, 240720), (2, 120360), (3, 80240), (4, 60180), (5, 48144), (6, 40120), (8, 30090), (10, 24072), (12, 20060), (15, 16048), (16, 15045), (17, 14160), (20, 12036), (24, 10030), (30, 8024), (34, 7080), (40, 6018), (48, 5015), (51, 4720), (59, 4080), (60, 4012), (68, 3540), (80, 3009), (85, 2832), (102, 2360), (118, 2040), (120, 2006), (136, 1770), (170, 1416), (177, 1360), (204, 1180), (236, 1020), (240, 1003), (255, 944), (272, 885), (295, 816), (340, 708), (354, 680), (408, 590), (472, 510)]