64961680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{373}}^1$

素因数の和:704

約数の個数: 80

約数和(自身を含む): 173631744

約数和(自身を除く): 108670064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 311, 373, 560, 622, 746, 1244, 1492, 1555, 1865, 2177, 2488, 2611, 2984, 3110, 3730, 4354, 4976, 5222, 5968, 6220, 7460, 8708, 10444, 10885, 12440, 13055, 14920, 17416, 20888, 21770, 24880, 26110, 29840, 34832, 41776, 43540, 52220, 87080, 104440, 116003, 174160, 208880, 232006, 464012, 580015, 812021, 928024, 1160030, 1624042, 1856048, 2320060, 3248084, 4060105, 4640120, 6496168, 8120210, 9280240, 12992336, 16240420, 32480840, 64961680]

約数ペア:

[(1, 64961680), (2, 32480840), (4, 16240420), (5, 12992336), (7, 9280240), (8, 8120210), (10, 6496168), (14, 4640120), (16, 4060105), (20, 3248084), (28, 2320060), (35, 1856048), (40, 1624042), (56, 1160030), (70, 928024), (80, 812021), (112, 580015), (140, 464012), (280, 232006), (311, 208880), (373, 174160), (560, 116003), (622, 104440), (746, 87080), (1244, 52220), (1492, 43540), (1555, 41776), (1865, 34832), (2177, 29840), (2488, 26110), (2611, 24880), (2984, 21770), (3110, 20888), (3730, 17416), (4354, 14920), (4976, 13055), (5222, 12440), (5968, 10885), (6220, 10444), (7460, 8708)]