20206420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 96

約数和(自身を含む): 49674240

約数和(自身を除く): 29467820

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 31, 46, 52, 62, 65, 92, 109, 115, 124, 130, 155, 218, 230, 260, 299, 310, 403, 436, 460, 545, 598, 620, 713, 806, 1090, 1196, 1417, 1426, 1495, 1612, 2015, 2180, 2507, 2834, 2852, 2990, 3379, 3565, 4030, 5014, 5668, 5980, 6758, 7085, 7130, 8060, 9269, 10028, 12535, 13516, 14170, 14260, 16895, 18538, 25070, 28340, 32591, 33790, 37076, 43927, 46345, 50140, 65182, 67580, 77717, 87854, 92690, 130364, 155434, 162955, 175708, 185380, 219635, 310868, 325910, 388585, 439270, 651820, 777170, 878540, 1010321, 1554340, 2020642, 4041284, 5051605, 10103210, 20206420]

約数ペア:

[(1, 20206420), (2, 10103210), (4, 5051605), (5, 4041284), (10, 2020642), (13, 1554340), (20, 1010321), (23, 878540), (26, 777170), (31, 651820), (46, 439270), (52, 388585), (62, 325910), (65, 310868), (92, 219635), (109, 185380), (115, 175708), (124, 162955), (130, 155434), (155, 130364), (218, 92690), (230, 87854), (260, 77717), (299, 67580), (310, 65182), (403, 50140), (436, 46345), (460, 43927), (545, 37076), (598, 33790), (620, 32591), (713, 28340), (806, 25070), (1090, 18538), (1196, 16895), (1417, 14260), (1426, 14170), (1495, 13516), (1612, 12535), (2015, 10028), (2180, 9269), (2507, 8060), (2834, 7130), (2852, 7085), (2990, 6758), (3379, 5980), (3565, 5668), (4030, 5014)]