20050472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 43512000

約数和(自身を除く): 23461528

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 73, 76, 104, 139, 146, 152, 247, 278, 292, 494, 556, 584, 949, 988, 1112, 1387, 1807, 1898, 1976, 2641, 2774, 3614, 3796, 5282, 5548, 7228, 7592, 10147, 10564, 11096, 14456, 18031, 20294, 21128, 34333, 36062, 40588, 68666, 72124, 81176, 131911, 137332, 144248, 192793, 263822, 274664, 385586, 527644, 771172, 1055288, 1542344, 2506309, 5012618, 10025236, 20050472]

約数ペア:

[(1, 20050472), (2, 10025236), (4, 5012618), (8, 2506309), (13, 1542344), (19, 1055288), (26, 771172), (38, 527644), (52, 385586), (73, 274664), (76, 263822), (104, 192793), (139, 144248), (146, 137332), (152, 131911), (247, 81176), (278, 72124), (292, 68666), (494, 40588), (556, 36062), (584, 34333), (949, 21128), (988, 20294), (1112, 18031), (1387, 14456), (1807, 11096), (1898, 10564), (1976, 10147), (2641, 7592), (2774, 7228), (3614, 5548), (3796, 5282)]