20795450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:168

約数の個数: 72

約数和(自身を含む): 44113248

約数和(自身を除く): 23317798

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 46, 50, 65, 107, 115, 130, 169, 214, 230, 299, 325, 338, 535, 575, 598, 650, 845, 1070, 1150, 1391, 1495, 1690, 2461, 2675, 2782, 2990, 3887, 4225, 4922, 5350, 6955, 7475, 7774, 8450, 12305, 13910, 14950, 18083, 19435, 24610, 31993, 34775, 36166, 38870, 61525, 63986, 69550, 90415, 97175, 123050, 159965, 180830, 194350, 319930, 415909, 452075, 799825, 831818, 904150, 1599650, 2079545, 4159090, 10397725, 20795450]

約数ペア:

[(1, 20795450), (2, 10397725), (5, 4159090), (10, 2079545), (13, 1599650), (23, 904150), (25, 831818), (26, 799825), (46, 452075), (50, 415909), (65, 319930), (107, 194350), (115, 180830), (130, 159965), (169, 123050), (214, 97175), (230, 90415), (299, 69550), (325, 63986), (338, 61525), (535, 38870), (575, 36166), (598, 34775), (650, 31993), (845, 24610), (1070, 19435), (1150, 18083), (1391, 14950), (1495, 13910), (1690, 12305), (2461, 8450), (2675, 7774), (2782, 7475), (2990, 6955), (3887, 5350), (4225, 4922)]