816331490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:987

約数の個数: 64

約数和(自身を含む): 1620380160

約数和(自身を除く): 804048670

約数列:

[1, 2, 5, 10, 13, 26, 65, 79, 101, 130, 158, 202, 395, 505, 787, 790, 1010, 1027, 1313, 1574, 2054, 2626, 3935, 5135, 6565, 7870, 7979, 10231, 10270, 13130, 15958, 20462, 39895, 51155, 62173, 79487, 79790, 102310, 103727, 124346, 158974, 207454, 310865, 397435, 518635, 621730, 794870, 808249, 1033331, 1037270, 1616498, 2066662, 4041245, 5166655, 6279473, 8082490, 10333310, 12558946, 31397365, 62794730, 81633149, 163266298, 408165745, 816331490]

約数ペア:

[(1, 816331490), (2, 408165745), (5, 163266298), (10, 81633149), (13, 62794730), (26, 31397365), (65, 12558946), (79, 10333310), (101, 8082490), (130, 6279473), (158, 5166655), (202, 4041245), (395, 2066662), (505, 1616498), (787, 1037270), (790, 1033331), (1010, 808249), (1027, 794870), (1313, 621730), (1574, 518635), (2054, 397435), (2626, 310865), (3935, 207454), (5135, 158974), (6565, 124346), (7870, 103727), (7979, 102310), (10231, 79790), (10270, 79487), (13130, 62173), (15958, 51155), (20462, 39895)]