20207640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8863}}^1$

素因数の和:8896

約数の個数: 64

約数和(自身を含む): 63820800

約数和(自身を除く): 43613160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8863, 17726, 26589, 35452, 44315, 53178, 70904, 88630, 106356, 132945, 168397, 177260, 212712, 265890, 336794, 354520, 505191, 531780, 673588, 841985, 1010382, 1063560, 1347176, 1683970, 2020764, 2525955, 3367940, 4041528, 5051910, 6735880, 10103820, 20207640]

約数ペア:

[(1, 20207640), (2, 10103820), (3, 6735880), (4, 5051910), (5, 4041528), (6, 3367940), (8, 2525955), (10, 2020764), (12, 1683970), (15, 1347176), (19, 1063560), (20, 1010382), (24, 841985), (30, 673588), (38, 531780), (40, 505191), (57, 354520), (60, 336794), (76, 265890), (95, 212712), (114, 177260), (120, 168397), (152, 132945), (190, 106356), (228, 88630), (285, 70904), (380, 53178), (456, 44315), (570, 35452), (760, 26589), (1140, 17726), (2280, 8863)]