70542420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{90439}}^1$

素因数の和:90464

約数の個数: 48

約数和(自身を含む): 212714880

約数和(自身を除く): 142172460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 90439, 180878, 271317, 361756, 452195, 542634, 904390, 1085268, 1175707, 1356585, 1808780, 2351414, 2713170, 3527121, 4702828, 5426340, 5878535, 7054242, 11757070, 14108484, 17635605, 23514140, 35271210, 70542420]

約数ペア:

[(1, 70542420), (2, 35271210), (3, 23514140), (4, 17635605), (5, 14108484), (6, 11757070), (10, 7054242), (12, 5878535), (13, 5426340), (15, 4702828), (20, 3527121), (26, 2713170), (30, 2351414), (39, 1808780), (52, 1356585), (60, 1175707), (65, 1085268), (78, 904390), (130, 542634), (156, 452195), (195, 361756), (260, 271317), (390, 180878), (780, 90439)]