20125690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21678086

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 53, 65, 106, 115, 127, 130, 230, 254, 265, 299, 530, 598, 635, 689, 1219, 1270, 1378, 1495, 1651, 2438, 2921, 2990, 3302, 3445, 5842, 6095, 6731, 6890, 8255, 12190, 13462, 14605, 15847, 16510, 29210, 31694, 33655, 37973, 67310, 75946, 79235, 87503, 154813, 158470, 175006, 189865, 309626, 379730, 437515, 774065, 875030, 1548130, 2012569, 4025138, 10062845, 20125690]

約数ペア:

[(1, 20125690), (2, 10062845), (5, 4025138), (10, 2012569), (13, 1548130), (23, 875030), (26, 774065), (46, 437515), (53, 379730), (65, 309626), (106, 189865), (115, 175006), (127, 158470), (130, 154813), (230, 87503), (254, 79235), (265, 75946), (299, 67310), (530, 37973), (598, 33655), (635, 31694), (689, 29210), (1219, 16510), (1270, 15847), (1378, 14605), (1495, 13462), (1651, 12190), (2438, 8255), (2921, 6890), (2990, 6731), (3302, 6095), (3445, 5842)]