20493604

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 19019996

約数列:

[1, 2, 4, 29, 31, 41, 58, 62, 82, 116, 124, 139, 164, 278, 556, 899, 1189, 1271, 1798, 2378, 2542, 3596, 4031, 4309, 4756, 5084, 5699, 8062, 8618, 11398, 16124, 17236, 22796, 36859, 73718, 124961, 147436, 165271, 176669, 249922, 330542, 353338, 499844, 661084, 706676, 5123401, 10246802, 20493604]

約数ペア:

[(1, 20493604), (2, 10246802), (4, 5123401), (29, 706676), (31, 661084), (41, 499844), (58, 353338), (62, 330542), (82, 249922), (116, 176669), (124, 165271), (139, 147436), (164, 124961), (278, 73718), (556, 36859), (899, 22796), (1189, 17236), (1271, 16124), (1798, 11398), (2378, 8618), (2542, 8062), (3596, 5699), (4031, 5084), (4309, 4756)]