19991370

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4179

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 37239990

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 35, 42, 46, 69, 70, 105, 115, 138, 161, 210, 230, 322, 345, 483, 690, 805, 966, 1610, 2415, 4139, 4830, 8278, 12417, 20695, 24834, 28973, 41390, 57946, 62085, 86919, 95197, 124170, 144865, 173838, 190394, 285591, 289730, 434595, 475985, 571182, 666379, 869190, 951970, 1332758, 1427955, 1999137, 2855910, 3331895, 3998274, 6663790, 9995685, 19991370]

約数ペア:

[(1, 19991370), (2, 9995685), (3, 6663790), (5, 3998274), (6, 3331895), (7, 2855910), (10, 1999137), (14, 1427955), (15, 1332758), (21, 951970), (23, 869190), (30, 666379), (35, 571182), (42, 475985), (46, 434595), (69, 289730), (70, 285591), (105, 190394), (115, 173838), (138, 144865), (161, 124170), (210, 95197), (230, 86919), (322, 62085), (345, 57946), (483, 41390), (690, 28973), (805, 24834), (966, 20695), (1610, 12417), (2415, 8278), (4139, 4830)]