87437440

素因数分解:

$2^7\times 5^1\times {\mathrm{136621}}^1$

素因数の和:136640

約数の個数: 32

約数和(自身を含む): 209031660

約数和(自身を除く): 121594220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 136621, 273242, 546484, 683105, 1092968, 1366210, 2185936, 2732420, 4371872, 5464840, 8743744, 10929680, 17487488, 21859360, 43718720, 87437440]

約数ペア:

[(1, 87437440), (2, 43718720), (4, 21859360), (5, 17487488), (8, 10929680), (10, 8743744), (16, 5464840), (20, 4371872), (32, 2732420), (40, 2185936), (64, 1366210), (80, 1092968), (128, 683105), (160, 546484), (320, 273242), (640, 136621)]