19755505

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{97}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 31215744

約数和(自身を除く): 11460239

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 97, 115, 161, 253, 385, 485, 529, 679, 805, 1067, 1265, 1771, 2231, 2645, 3395, 3703, 5335, 5819, 7469, 8855, 11155, 15617, 18515, 24541, 29095, 37345, 40733, 51313, 78085, 122705, 171787, 203665, 256565, 359191, 564443, 858935, 1795955, 2822215, 3951101, 19755505]

約数ペア:

[(1, 19755505), (5, 3951101), (7, 2822215), (11, 1795955), (23, 858935), (35, 564443), (55, 359191), (77, 256565), (97, 203665), (115, 171787), (161, 122705), (253, 78085), (385, 51313), (485, 40733), (529, 37345), (679, 29095), (805, 24541), (1067, 18515), (1265, 15617), (1771, 11155), (2231, 8855), (2645, 7469), (3395, 5819), (3703, 5335)]