129624980

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{613}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 277994640

約数和(自身を除く): 148369660

約数列:

[1, 2, 4, 5, 10, 20, 97, 109, 194, 218, 388, 436, 485, 545, 613, 970, 1090, 1226, 1940, 2180, 2452, 3065, 6130, 10573, 12260, 21146, 42292, 52865, 59461, 66817, 105730, 118922, 133634, 211460, 237844, 267268, 297305, 334085, 594610, 668170, 1189220, 1336340, 6481249, 12962498, 25924996, 32406245, 64812490, 129624980]

約数ペア:

[(1, 129624980), (2, 64812490), (4, 32406245), (5, 25924996), (10, 12962498), (20, 6481249), (97, 1336340), (109, 1189220), (194, 668170), (218, 594610), (388, 334085), (436, 297305), (485, 267268), (545, 237844), (613, 211460), (970, 133634), (1090, 118922), (1226, 105730), (1940, 66817), (2180, 59461), (2452, 52865), (3065, 42292), (6130, 21146), (10573, 12260)]