64537840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 80

約数和(自身を含む): 156248928

約数和(自身を除く): 91711088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 73, 80, 86, 146, 172, 215, 257, 292, 344, 365, 430, 514, 584, 688, 730, 860, 1028, 1168, 1285, 1460, 1720, 2056, 2570, 2920, 3139, 3440, 4112, 5140, 5840, 6278, 10280, 11051, 12556, 15695, 18761, 20560, 22102, 25112, 31390, 37522, 44204, 50224, 55255, 62780, 75044, 88408, 93805, 110510, 125560, 150088, 176816, 187610, 221020, 251120, 300176, 375220, 442040, 750440, 806723, 884080, 1500880, 1613446, 3226892, 4033615, 6453784, 8067230, 12907568, 16134460, 32268920, 64537840]

約数ペア:

[(1, 64537840), (2, 32268920), (4, 16134460), (5, 12907568), (8, 8067230), (10, 6453784), (16, 4033615), (20, 3226892), (40, 1613446), (43, 1500880), (73, 884080), (80, 806723), (86, 750440), (146, 442040), (172, 375220), (215, 300176), (257, 251120), (292, 221020), (344, 187610), (365, 176816), (430, 150088), (514, 125560), (584, 110510), (688, 93805), (730, 88408), (860, 75044), (1028, 62780), (1168, 55255), (1285, 50224), (1460, 44204), (1720, 37522), (2056, 31390), (2570, 25112), (2920, 22102), (3139, 20560), (3440, 18761), (4112, 15695), (5140, 12556), (5840, 11051), (6278, 10280)]