81728320

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2633}}^1$

素因数の和:2747

約数の個数: 56

約数和(自身を含む): 196696584

約数和(自身を除く): 114968264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 776, 970, 1552, 1940, 2633, 3104, 3880, 5266, 6208, 7760, 10532, 13165, 15520, 21064, 26330, 31040, 42128, 52660, 84256, 105320, 168512, 210640, 255401, 421280, 510802, 842560, 1021604, 1277005, 2043208, 2554010, 4086416, 5108020, 8172832, 10216040, 16345664, 20432080, 40864160, 81728320]

約数ペア:

[(1, 81728320), (2, 40864160), (4, 20432080), (5, 16345664), (8, 10216040), (10, 8172832), (16, 5108020), (20, 4086416), (32, 2554010), (40, 2043208), (64, 1277005), (80, 1021604), (97, 842560), (160, 510802), (194, 421280), (320, 255401), (388, 210640), (485, 168512), (776, 105320), (970, 84256), (1552, 52660), (1940, 42128), (2633, 31040), (3104, 26330), (3880, 21064), (5266, 15520), (6208, 13165), (7760, 10532)]