72920720

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9397}}^1$

素因数の和:9507

約数の個数: 40

約数和(自身を含む): 171306744

約数和(自身を除く): 98386024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 9397, 18794, 37588, 46985, 75176, 93970, 150352, 187940, 375880, 751760, 911509, 1823018, 3646036, 4557545, 7292072, 9115090, 14584144, 18230180, 36460360, 72920720]

約数ペア:

[(1, 72920720), (2, 36460360), (4, 18230180), (5, 14584144), (8, 9115090), (10, 7292072), (16, 4557545), (20, 3646036), (40, 1823018), (80, 911509), (97, 751760), (194, 375880), (388, 187940), (485, 150352), (776, 93970), (970, 75176), (1552, 46985), (1940, 37588), (3880, 18794), (7760, 9397)]