1388403280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{68597}}^1$

素因数の和:68644

約数の個数: 80

約数和(自身を含む): 3674657664

約数和(自身を除く): 2286254384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 2024, 2530, 4048, 5060, 10120, 20240, 68597, 137194, 274388, 342985, 548776, 685970, 754567, 1097552, 1371940, 1509134, 1577731, 2743880, 3018268, 3155462, 3772835, 5487760, 6036536, 6310924, 7545670, 7888655, 12073072, 12621848, 15091340, 15777310, 17355041, 25243696, 30182680, 31554620, 34710082, 60365360, 63109240, 69420164, 86775205, 126218480, 138840328, 173550410, 277680656, 347100820, 694201640, 1388403280]

約数ペア:

[(1, 1388403280), (2, 694201640), (4, 347100820), (5, 277680656), (8, 173550410), (10, 138840328), (11, 126218480), (16, 86775205), (20, 69420164), (22, 63109240), (23, 60365360), (40, 34710082), (44, 31554620), (46, 30182680), (55, 25243696), (80, 17355041), (88, 15777310), (92, 15091340), (110, 12621848), (115, 12073072), (176, 7888655), (184, 7545670), (220, 6310924), (230, 6036536), (253, 5487760), (368, 3772835), (440, 3155462), (460, 3018268), (506, 2743880), (880, 1577731), (920, 1509134), (1012, 1371940), (1265, 1097552), (1840, 754567), (2024, 685970), (2530, 548776), (4048, 342985), (5060, 274388), (10120, 137194), (20240, 68597)]