39454640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 97895520

約数和(自身を除く): 58440880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 152, 190, 202, 257, 304, 380, 404, 505, 514, 760, 808, 1010, 1028, 1285, 1520, 1616, 1919, 2020, 2056, 2570, 3838, 4040, 4112, 4883, 5140, 7676, 8080, 9595, 9766, 10280, 15352, 19190, 19532, 20560, 24415, 25957, 30704, 38380, 39064, 48830, 51914, 76760, 78128, 97660, 103828, 129785, 153520, 195320, 207656, 259570, 390640, 415312, 493183, 519140, 986366, 1038280, 1972732, 2076560, 2465915, 3945464, 4931830, 7890928, 9863660, 19727320, 39454640]

約数ペア:

[(1, 39454640), (2, 19727320), (4, 9863660), (5, 7890928), (8, 4931830), (10, 3945464), (16, 2465915), (19, 2076560), (20, 1972732), (38, 1038280), (40, 986366), (76, 519140), (80, 493183), (95, 415312), (101, 390640), (152, 259570), (190, 207656), (202, 195320), (257, 153520), (304, 129785), (380, 103828), (404, 97660), (505, 78128), (514, 76760), (760, 51914), (808, 48830), (1010, 39064), (1028, 38380), (1285, 30704), (1520, 25957), (1616, 24415), (1919, 20560), (2020, 19532), (2056, 19190), (2570, 15352), (3838, 10280), (4040, 9766), (4112, 9595), (4883, 8080), (5140, 7676)]