19589960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{373}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 48066480

約数和(自身を除く): 28476520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 101, 104, 130, 202, 260, 373, 404, 505, 520, 746, 808, 1010, 1313, 1492, 1865, 2020, 2626, 2984, 3730, 4040, 4849, 5252, 6565, 7460, 9698, 10504, 13130, 14920, 19396, 24245, 26260, 37673, 38792, 48490, 52520, 75346, 96980, 150692, 188365, 193960, 301384, 376730, 489749, 753460, 979498, 1506920, 1958996, 2448745, 3917992, 4897490, 9794980, 19589960]

約数ペア:

[(1, 19589960), (2, 9794980), (4, 4897490), (5, 3917992), (8, 2448745), (10, 1958996), (13, 1506920), (20, 979498), (26, 753460), (40, 489749), (52, 376730), (65, 301384), (101, 193960), (104, 188365), (130, 150692), (202, 96980), (260, 75346), (373, 52520), (404, 48490), (505, 38792), (520, 37673), (746, 26260), (808, 24245), (1010, 19396), (1313, 14920), (1492, 13130), (1865, 10504), (2020, 9698), (2626, 7460), (2984, 6565), (3730, 5252), (4040, 4849)]