19763900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 48267744

約数和(自身を除く): 28503844

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 25, 26, 46, 50, 52, 65, 92, 100, 115, 130, 230, 260, 299, 325, 460, 575, 598, 650, 661, 1150, 1196, 1300, 1322, 1495, 2300, 2644, 2990, 3305, 5980, 6610, 7475, 8593, 13220, 14950, 15203, 16525, 17186, 29900, 30406, 33050, 34372, 42965, 60812, 66100, 76015, 85930, 152030, 171860, 197639, 214825, 304060, 380075, 395278, 429650, 760150, 790556, 859300, 988195, 1520300, 1976390, 3952780, 4940975, 9881950, 19763900]

約数ペア:

[(1, 19763900), (2, 9881950), (4, 4940975), (5, 3952780), (10, 1976390), (13, 1520300), (20, 988195), (23, 859300), (25, 790556), (26, 760150), (46, 429650), (50, 395278), (52, 380075), (65, 304060), (92, 214825), (100, 197639), (115, 171860), (130, 152030), (230, 85930), (260, 76015), (299, 66100), (325, 60812), (460, 42965), (575, 34372), (598, 33050), (650, 30406), (661, 29900), (1150, 17186), (1196, 16525), (1300, 15203), (1322, 14950), (1495, 13220), (2300, 8593), (2644, 7475), (2990, 6610), (3305, 5980)]