20819040

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3943}}^1$

素因数の和:3972

約数の個数: 96

約数和(自身を含む): 71559936

約数和(自身を除く): 50740896

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 264, 330, 352, 440, 480, 528, 660, 880, 1056, 1320, 1760, 2640, 3943, 5280, 7886, 11829, 15772, 19715, 23658, 31544, 39430, 43373, 47316, 59145, 63088, 78860, 86746, 94632, 118290, 126176, 130119, 157720, 173492, 189264, 216865, 236580, 260238, 315440, 346984, 378528, 433730, 473160, 520476, 630880, 650595, 693968, 867460, 946320, 1040952, 1301190, 1387936, 1734920, 1892640, 2081904, 2602380, 3469840, 4163808, 5204760, 6939680, 10409520, 20819040]

約数ペア:

[(1, 20819040), (2, 10409520), (3, 6939680), (4, 5204760), (5, 4163808), (6, 3469840), (8, 2602380), (10, 2081904), (11, 1892640), (12, 1734920), (15, 1387936), (16, 1301190), (20, 1040952), (22, 946320), (24, 867460), (30, 693968), (32, 650595), (33, 630880), (40, 520476), (44, 473160), (48, 433730), (55, 378528), (60, 346984), (66, 315440), (80, 260238), (88, 236580), (96, 216865), (110, 189264), (120, 173492), (132, 157720), (160, 130119), (165, 126176), (176, 118290), (220, 94632), (240, 86746), (264, 78860), (330, 63088), (352, 59145), (440, 47316), (480, 43373), (528, 39430), (660, 31544), (880, 23658), (1056, 19715), (1320, 15772), (1760, 11829), (2640, 7886), (3943, 5280)]