64869760

素因数分解:

$2^7\times 5^1\times {\mathrm{101359}}^1$

素因数の和:101378

約数の個数: 32

約数和(自身を含む): 155080800

約数和(自身を除く): 90211040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 101359, 202718, 405436, 506795, 810872, 1013590, 1621744, 2027180, 3243488, 4054360, 6486976, 8108720, 12973952, 16217440, 32434880, 64869760]

約数ペア:

[(1, 64869760), (2, 32434880), (4, 16217440), (5, 12973952), (8, 8108720), (10, 6486976), (16, 4054360), (20, 3243488), (32, 2027180), (40, 1621744), (64, 1013590), (80, 810872), (128, 506795), (160, 405436), (320, 202718), (640, 101359)]