77857990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1307}}^1$

素因数の和:1381

約数の個数: 64

約数和(自身を含む): 171777024

約数和(自身を除く): 93919034

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 37, 46, 70, 74, 115, 161, 185, 230, 259, 322, 370, 518, 805, 851, 1295, 1307, 1610, 1702, 2590, 2614, 4255, 5957, 6535, 8510, 9149, 11914, 13070, 18298, 29785, 30061, 45745, 48359, 59570, 60122, 91490, 96718, 150305, 210427, 241795, 300610, 338513, 420854, 483590, 677026, 1052135, 1112257, 1692565, 2104270, 2224514, 3385130, 5561285, 7785799, 11122570, 15571598, 38928995, 77857990]

約数ペア:

[(1, 77857990), (2, 38928995), (5, 15571598), (7, 11122570), (10, 7785799), (14, 5561285), (23, 3385130), (35, 2224514), (37, 2104270), (46, 1692565), (70, 1112257), (74, 1052135), (115, 677026), (161, 483590), (185, 420854), (230, 338513), (259, 300610), (322, 241795), (370, 210427), (518, 150305), (805, 96718), (851, 91490), (1295, 60122), (1307, 59570), (1610, 48359), (1702, 45745), (2590, 30061), (2614, 29785), (4255, 18298), (5957, 13070), (6535, 11914), (8510, 9149)]