28911250

素因数分解:

$2^1\times 5^4\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 40

約数和(自身を含む): 54966780

約数和(自身を除く): 26055530

約数列:

[1, 2, 5, 10, 25, 50, 101, 125, 202, 229, 250, 458, 505, 625, 1010, 1145, 1250, 2290, 2525, 5050, 5725, 11450, 12625, 23129, 25250, 28625, 46258, 57250, 63125, 115645, 126250, 143125, 231290, 286250, 578225, 1156450, 2891125, 5782250, 14455625, 28911250]

約数ペア:

[(1, 28911250), (2, 14455625), (5, 5782250), (10, 2891125), (25, 1156450), (50, 578225), (101, 286250), (125, 231290), (202, 143125), (229, 126250), (250, 115645), (458, 63125), (505, 57250), (625, 46258), (1010, 28625), (1145, 25250), (1250, 23129), (2290, 12625), (2525, 11450), (5050, 5725)]