72909440

素因数分解:

$2^7\times 5^1\times {\mathrm{113921}}^1$

素因数の和:113940

約数の個数: 32

約数和(自身を含む): 174300660

約数和(自身を除く): 101391220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 113921, 227842, 455684, 569605, 911368, 1139210, 1822736, 2278420, 3645472, 4556840, 7290944, 9113680, 14581888, 18227360, 36454720, 72909440]

約数ペア:

[(1, 72909440), (2, 36454720), (4, 18227360), (5, 14581888), (8, 9113680), (10, 7290944), (16, 4556840), (20, 3645472), (32, 2278420), (40, 1822736), (64, 1139210), (80, 911368), (128, 569605), (160, 455684), (320, 227842), (640, 113921)]