2640840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{373}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 8078400

約数和(自身を除く): 5437560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 373, 472, 590, 708, 746, 885, 1119, 1180, 1416, 1492, 1770, 1865, 2238, 2360, 2984, 3540, 3730, 4476, 5595, 7080, 7460, 8952, 11190, 14920, 22007, 22380, 44014, 44760, 66021, 88028, 110035, 132042, 176056, 220070, 264084, 330105, 440140, 528168, 660210, 880280, 1320420, 2640840]

約数ペア:

[(1, 2640840), (2, 1320420), (3, 880280), (4, 660210), (5, 528168), (6, 440140), (8, 330105), (10, 264084), (12, 220070), (15, 176056), (20, 132042), (24, 110035), (30, 88028), (40, 66021), (59, 44760), (60, 44014), (118, 22380), (120, 22007), (177, 14920), (236, 11190), (295, 8952), (354, 7460), (373, 7080), (472, 5595), (590, 4476), (708, 3730), (746, 3540), (885, 2984), (1119, 2360), (1180, 2238), (1416, 1865), (1492, 1770)]