30877780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 69155856

約数和(自身を除く): 38278076

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 461, 788, 922, 985, 1844, 1970, 2305, 3349, 3940, 4610, 6698, 7837, 9220, 13396, 15674, 16745, 31348, 33490, 39185, 66980, 78370, 90817, 156740, 181634, 363268, 454085, 908170, 1543889, 1816340, 3087778, 6175556, 7719445, 15438890, 30877780]

約数ペア:

[(1, 30877780), (2, 15438890), (4, 7719445), (5, 6175556), (10, 3087778), (17, 1816340), (20, 1543889), (34, 908170), (68, 454085), (85, 363268), (170, 181634), (197, 156740), (340, 90817), (394, 78370), (461, 66980), (788, 39185), (922, 33490), (985, 31348), (1844, 16745), (1970, 15674), (2305, 13396), (3349, 9220), (3940, 7837), (4610, 6698)]