72717440

素因数分解:

$2^7\times 5^1\times {\mathrm{113621}}^1$

素因数の和:113640

約数の個数: 32

約数和(自身を含む): 173841660

約数和(自身を除く): 101124220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 113621, 227242, 454484, 568105, 908968, 1136210, 1817936, 2272420, 3635872, 4544840, 7271744, 9089680, 14543488, 18179360, 36358720, 72717440]

約数ペア:

[(1, 72717440), (2, 36358720), (4, 18179360), (5, 14543488), (8, 9089680), (10, 7271744), (16, 4544840), (20, 3635872), (32, 2272420), (40, 1817936), (64, 1136210), (80, 908968), (128, 568105), (160, 454484), (320, 227242), (640, 113621)]