280286640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{389287}}^1$

素因数の和:389306

約数の個数: 60

約数和(自身を含む): 941298384

約数和(自身を除く): 661011744

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 389287, 778574, 1167861, 1557148, 1946435, 2335722, 3114296, 3503583, 3892870, 4671444, 5839305, 6228592, 7007166, 7785740, 9342888, 11678610, 14014332, 15571480, 17517915, 18685776, 23357220, 28028664, 31142960, 35035830, 46714440, 56057328, 70071660, 93428880, 140143320, 280286640]

約数ペア:

[(1, 280286640), (2, 140143320), (3, 93428880), (4, 70071660), (5, 56057328), (6, 46714440), (8, 35035830), (9, 31142960), (10, 28028664), (12, 23357220), (15, 18685776), (16, 17517915), (18, 15571480), (20, 14014332), (24, 11678610), (30, 9342888), (36, 7785740), (40, 7007166), (45, 6228592), (48, 5839305), (60, 4671444), (72, 3892870), (80, 3503583), (90, 3114296), (120, 2335722), (144, 1946435), (180, 1557148), (240, 1167861), (360, 778574), (720, 389287)]