20715360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:540

約数の個数: 96

約数和(自身を含む): 66044160

約数和(自身を除く): 45328800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 103, 120, 160, 206, 240, 309, 412, 419, 480, 515, 618, 824, 838, 1030, 1236, 1257, 1545, 1648, 1676, 2060, 2095, 2472, 2514, 3090, 3296, 3352, 4120, 4190, 4944, 5028, 6180, 6285, 6704, 8240, 8380, 9888, 10056, 12360, 12570, 13408, 16480, 16760, 20112, 24720, 25140, 33520, 40224, 43157, 49440, 50280, 67040, 86314, 100560, 129471, 172628, 201120, 215785, 258942, 345256, 431570, 517884, 647355, 690512, 863140, 1035768, 1294710, 1381024, 1726280, 2071536, 2589420, 3452560, 4143072, 5178840, 6905120, 10357680, 20715360]

約数ペア:

[(1, 20715360), (2, 10357680), (3, 6905120), (4, 5178840), (5, 4143072), (6, 3452560), (8, 2589420), (10, 2071536), (12, 1726280), (15, 1381024), (16, 1294710), (20, 1035768), (24, 863140), (30, 690512), (32, 647355), (40, 517884), (48, 431570), (60, 345256), (80, 258942), (96, 215785), (103, 201120), (120, 172628), (160, 129471), (206, 100560), (240, 86314), (309, 67040), (412, 50280), (419, 49440), (480, 43157), (515, 40224), (618, 33520), (824, 25140), (838, 24720), (1030, 20112), (1236, 16760), (1257, 16480), (1545, 13408), (1648, 12570), (1676, 12360), (2060, 10056), (2095, 9888), (2472, 8380), (2514, 8240), (3090, 6704), (3296, 6285), (3352, 6180), (4120, 5028), (4190, 4944)]