157213720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40519}}^1$

素因数の和:40627

約数の個数: 32

約数和(自身を含む): 357386400

約数和(自身を除く): 200172680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 40519, 81038, 162076, 202595, 324152, 405190, 810380, 1620760, 3930343, 7860686, 15721372, 19651715, 31442744, 39303430, 78606860, 157213720]

約数ペア:

[(1, 157213720), (2, 78606860), (4, 39303430), (5, 31442744), (8, 19651715), (10, 15721372), (20, 7860686), (40, 3930343), (97, 1620760), (194, 810380), (388, 405190), (485, 324152), (776, 202595), (970, 162076), (1940, 81038), (3880, 40519)]