28213100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 66662400

約数和(自身を除く): 38449300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 479, 589, 620, 775, 950, 958, 1178, 1550, 1900, 1916, 2356, 2395, 2945, 3100, 4790, 5890, 9101, 9580, 11780, 11975, 14725, 14849, 18202, 23950, 29450, 29698, 36404, 45505, 47900, 58900, 59396, 74245, 91010, 148490, 182020, 227525, 282131, 296980, 371225, 455050, 564262, 742450, 910100, 1128524, 1410655, 1484900, 2821310, 5642620, 7053275, 14106550, 28213100]

約数ペア:

[(1, 28213100), (2, 14106550), (4, 7053275), (5, 5642620), (10, 2821310), (19, 1484900), (20, 1410655), (25, 1128524), (31, 910100), (38, 742450), (50, 564262), (62, 455050), (76, 371225), (95, 296980), (100, 282131), (124, 227525), (155, 182020), (190, 148490), (310, 91010), (380, 74245), (475, 59396), (479, 58900), (589, 47900), (620, 45505), (775, 36404), (950, 29698), (958, 29450), (1178, 23950), (1550, 18202), (1900, 14849), (1916, 14725), (2356, 11975), (2395, 11780), (2945, 9580), (3100, 9101), (4790, 5890)]