20493550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5323}}^1$

素因数の和:5353

約数の個数: 48

約数和(自身を含む): 47532672

約数和(自身を除く): 27039122

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 50, 55, 70, 77, 110, 154, 175, 275, 350, 385, 550, 770, 1925, 3850, 5323, 10646, 26615, 37261, 53230, 58553, 74522, 117106, 133075, 186305, 266150, 292765, 372610, 409871, 585530, 819742, 931525, 1463825, 1863050, 2049355, 2927650, 4098710, 10246775, 20493550]

約数ペア:

[(1, 20493550), (2, 10246775), (5, 4098710), (7, 2927650), (10, 2049355), (11, 1863050), (14, 1463825), (22, 931525), (25, 819742), (35, 585530), (50, 409871), (55, 372610), (70, 292765), (77, 266150), (110, 186305), (154, 133075), (175, 117106), (275, 74522), (350, 58553), (385, 53230), (550, 37261), (770, 26615), (1925, 10646), (3850, 5323)]