20277840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7681}}^1$

素因数の和:7708

約数の個数: 80

約数和(自身を含む): 68584896

約数和(自身を除く): 48307056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7681, 15362, 23043, 30724, 38405, 46086, 61448, 76810, 84491, 92172, 115215, 122896, 153620, 168982, 184344, 230430, 253473, 307240, 337964, 368688, 422455, 460860, 506946, 614480, 675928, 844910, 921720, 1013892, 1267365, 1351856, 1689820, 1843440, 2027784, 2534730, 3379640, 4055568, 5069460, 6759280, 10138920, 20277840]

約数ペア:

[(1, 20277840), (2, 10138920), (3, 6759280), (4, 5069460), (5, 4055568), (6, 3379640), (8, 2534730), (10, 2027784), (11, 1843440), (12, 1689820), (15, 1351856), (16, 1267365), (20, 1013892), (22, 921720), (24, 844910), (30, 675928), (33, 614480), (40, 506946), (44, 460860), (48, 422455), (55, 368688), (60, 337964), (66, 307240), (80, 253473), (88, 230430), (110, 184344), (120, 168982), (132, 153620), (165, 122896), (176, 115215), (220, 92172), (240, 84491), (264, 76810), (330, 61448), (440, 46086), (528, 38405), (660, 30724), (880, 23043), (1320, 15362), (2640, 7681)]