80216780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 200503296

約数和(自身を除く): 120286516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 73, 94, 140, 146, 167, 188, 235, 292, 329, 334, 365, 470, 511, 658, 668, 730, 835, 940, 1022, 1169, 1316, 1460, 1645, 1670, 2044, 2338, 2555, 3290, 3340, 3431, 4676, 5110, 5845, 6580, 6862, 7849, 10220, 11690, 12191, 13724, 15698, 17155, 23380, 24017, 24382, 31396, 34310, 39245, 48034, 48764, 54943, 60955, 68620, 78490, 85337, 96068, 109886, 120085, 121910, 156980, 170674, 219772, 240170, 243820, 274715, 341348, 426685, 480340, 549430, 572977, 853370, 1098860, 1145954, 1706740, 2291908, 2864885, 4010839, 5729770, 8021678, 11459540, 16043356, 20054195, 40108390, 80216780]

約数ペア:

[(1, 80216780), (2, 40108390), (4, 20054195), (5, 16043356), (7, 11459540), (10, 8021678), (14, 5729770), (20, 4010839), (28, 2864885), (35, 2291908), (47, 1706740), (70, 1145954), (73, 1098860), (94, 853370), (140, 572977), (146, 549430), (167, 480340), (188, 426685), (235, 341348), (292, 274715), (329, 243820), (334, 240170), (365, 219772), (470, 170674), (511, 156980), (658, 121910), (668, 120085), (730, 109886), (835, 96068), (940, 85337), (1022, 78490), (1169, 68620), (1316, 60955), (1460, 54943), (1645, 48764), (1670, 48034), (2044, 39245), (2338, 34310), (2555, 31396), (3290, 24382), (3340, 24017), (3431, 23380), (4676, 17155), (5110, 15698), (5845, 13724), (6580, 12191), (6862, 11690), (7849, 10220)]