20612760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:537

約数の個数: 128

約数和(自身を含む): 72161280

約数和(自身を除く): 51548520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 53, 56, 60, 70, 84, 105, 106, 120, 140, 159, 168, 210, 212, 265, 280, 318, 371, 420, 424, 463, 530, 636, 742, 795, 840, 926, 1060, 1113, 1272, 1389, 1484, 1590, 1852, 1855, 2120, 2226, 2315, 2778, 2968, 3180, 3241, 3704, 3710, 4452, 4630, 5556, 5565, 6360, 6482, 6945, 7420, 8904, 9260, 9723, 11112, 11130, 12964, 13890, 14840, 16205, 18520, 19446, 22260, 24539, 25928, 27780, 32410, 38892, 44520, 48615, 49078, 55560, 64820, 73617, 77784, 97230, 98156, 122695, 129640, 147234, 171773, 194460, 196312, 245390, 294468, 343546, 368085, 388920, 490780, 515319, 588936, 687092, 736170, 858865, 981560, 1030638, 1374184, 1472340, 1717730, 2061276, 2576595, 2944680, 3435460, 4122552, 5153190, 6870920, 10306380, 20612760]

約数ペア:

[(1, 20612760), (2, 10306380), (3, 6870920), (4, 5153190), (5, 4122552), (6, 3435460), (7, 2944680), (8, 2576595), (10, 2061276), (12, 1717730), (14, 1472340), (15, 1374184), (20, 1030638), (21, 981560), (24, 858865), (28, 736170), (30, 687092), (35, 588936), (40, 515319), (42, 490780), (53, 388920), (56, 368085), (60, 343546), (70, 294468), (84, 245390), (105, 196312), (106, 194460), (120, 171773), (140, 147234), (159, 129640), (168, 122695), (210, 98156), (212, 97230), (265, 77784), (280, 73617), (318, 64820), (371, 55560), (420, 49078), (424, 48615), (463, 44520), (530, 38892), (636, 32410), (742, 27780), (795, 25928), (840, 24539), (926, 22260), (1060, 19446), (1113, 18520), (1272, 16205), (1389, 14840), (1484, 13890), (1590, 12964), (1852, 11130), (1855, 11112), (2120, 9723), (2226, 9260), (2315, 8904), (2778, 7420), (2968, 6945), (3180, 6482), (3241, 6360), (3704, 5565), (3710, 5556), (4452, 4630)]