420240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:136

約数の個数: 80

約数和(自身を含む): 1392768

約数和(自身を除く): 972528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 103, 120, 136, 170, 204, 206, 240, 255, 272, 309, 340, 408, 412, 510, 515, 618, 680, 816, 824, 1020, 1030, 1236, 1360, 1545, 1648, 1751, 2040, 2060, 2472, 3090, 3502, 4080, 4120, 4944, 5253, 6180, 7004, 8240, 8755, 10506, 12360, 14008, 17510, 21012, 24720, 26265, 28016, 35020, 42024, 52530, 70040, 84048, 105060, 140080, 210120, 420240]

約数ペア:

[(1, 420240), (2, 210120), (3, 140080), (4, 105060), (5, 84048), (6, 70040), (8, 52530), (10, 42024), (12, 35020), (15, 28016), (16, 26265), (17, 24720), (20, 21012), (24, 17510), (30, 14008), (34, 12360), (40, 10506), (48, 8755), (51, 8240), (60, 7004), (68, 6180), (80, 5253), (85, 4944), (102, 4120), (103, 4080), (120, 3502), (136, 3090), (170, 2472), (204, 2060), (206, 2040), (240, 1751), (255, 1648), (272, 1545), (309, 1360), (340, 1236), (408, 1030), (412, 1020), (510, 824), (515, 816), (618, 680)]