1278394760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{10979}}^1$

素因数の和:11102

約数の個数: 64

約数和(自身を含む): 2988316800

約数和(自身を除く): 1709922040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 568, 710, 820, 1420, 1640, 2840, 2911, 5822, 10979, 11644, 14555, 21958, 23288, 29110, 43916, 54895, 58220, 87832, 109790, 116440, 219580, 439160, 450139, 779509, 900278, 1559018, 1800556, 2250695, 3118036, 3601112, 3897545, 4501390, 6236072, 7795090, 9002780, 15590180, 18005560, 31180360, 31959869, 63919738, 127839476, 159799345, 255678952, 319598690, 639197380, 1278394760]

約数ペア:

[(1, 1278394760), (2, 639197380), (4, 319598690), (5, 255678952), (8, 159799345), (10, 127839476), (20, 63919738), (40, 31959869), (41, 31180360), (71, 18005560), (82, 15590180), (142, 9002780), (164, 7795090), (205, 6236072), (284, 4501390), (328, 3897545), (355, 3601112), (410, 3118036), (568, 2250695), (710, 1800556), (820, 1559018), (1420, 900278), (1640, 779509), (2840, 450139), (2911, 439160), (5822, 219580), (10979, 116440), (11644, 109790), (14555, 87832), (21958, 58220), (23288, 54895), (29110, 43916)]