81404475

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1151}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 143990784

約数和(自身を除く): 62586309

約数列:

[1, 3, 5, 15, 23, 25, 41, 69, 75, 115, 123, 205, 345, 575, 615, 943, 1025, 1151, 1725, 2829, 3075, 3453, 4715, 5755, 14145, 17265, 23575, 26473, 28775, 47191, 70725, 79419, 86325, 132365, 141573, 235955, 397095, 661825, 707865, 1085393, 1179775, 1985475, 3256179, 3539325, 5426965, 16280895, 27134825, 81404475]

約数ペア:

[(1, 81404475), (3, 27134825), (5, 16280895), (15, 5426965), (23, 3539325), (25, 3256179), (41, 1985475), (69, 1179775), (75, 1085393), (115, 707865), (123, 661825), (205, 397095), (345, 235955), (575, 141573), (615, 132365), (943, 86325), (1025, 79419), (1151, 70725), (1725, 47191), (2829, 28775), (3075, 26473), (3453, 23575), (4715, 17265), (5755, 14145)]