28763900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{331}}^1$

素因数の和:435

約数の個数: 72

約数和(自身を含む): 69162240

約数和(自身を除く): 40398340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 79, 100, 110, 158, 220, 275, 316, 331, 395, 550, 662, 790, 869, 1100, 1324, 1580, 1655, 1738, 1975, 3310, 3476, 3641, 3950, 4345, 6620, 7282, 7900, 8275, 8690, 14564, 16550, 17380, 18205, 21725, 26149, 33100, 36410, 43450, 52298, 72820, 86900, 91025, 104596, 130745, 182050, 261490, 287639, 364100, 522980, 575278, 653725, 1150556, 1307450, 1438195, 2614900, 2876390, 5752780, 7190975, 14381950, 28763900]

約数ペア:

[(1, 28763900), (2, 14381950), (4, 7190975), (5, 5752780), (10, 2876390), (11, 2614900), (20, 1438195), (22, 1307450), (25, 1150556), (44, 653725), (50, 575278), (55, 522980), (79, 364100), (100, 287639), (110, 261490), (158, 182050), (220, 130745), (275, 104596), (316, 91025), (331, 86900), (395, 72820), (550, 52298), (662, 43450), (790, 36410), (869, 33100), (1100, 26149), (1324, 21725), (1580, 18205), (1655, 17380), (1738, 16550), (1975, 14564), (3310, 8690), (3476, 8275), (3641, 7900), (3950, 7282), (4345, 6620)]