201520880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3137}}^1$

素因数の和:3234

約数の個数: 80

約数和(自身を含む): 518297184

約数和(自身を除く): 316776304

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 584, 730, 803, 880, 1168, 1460, 1606, 2920, 3137, 3212, 4015, 5840, 6274, 6424, 8030, 12548, 12848, 15685, 16060, 25096, 31370, 32120, 34507, 50192, 62740, 64240, 69014, 125480, 138028, 172535, 229001, 250960, 276056, 345070, 458002, 552112, 690140, 916004, 1145005, 1380280, 1832008, 2290010, 2519011, 2760560, 3664016, 4580020, 5038022, 9160040, 10076044, 12595055, 18320080, 20152088, 25190110, 40304176, 50380220, 100760440, 201520880]

約数ペア:

[(1, 201520880), (2, 100760440), (4, 50380220), (5, 40304176), (8, 25190110), (10, 20152088), (11, 18320080), (16, 12595055), (20, 10076044), (22, 9160040), (40, 5038022), (44, 4580020), (55, 3664016), (73, 2760560), (80, 2519011), (88, 2290010), (110, 1832008), (146, 1380280), (176, 1145005), (220, 916004), (292, 690140), (365, 552112), (440, 458002), (584, 345070), (730, 276056), (803, 250960), (880, 229001), (1168, 172535), (1460, 138028), (1606, 125480), (2920, 69014), (3137, 64240), (3212, 62740), (4015, 50192), (5840, 34507), (6274, 32120), (6424, 31370), (8030, 25096), (12548, 16060), (12848, 15685)]