65402680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 177292800

約数和(自身を除く): 111890120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 59, 70, 74, 107, 118, 140, 148, 185, 214, 236, 259, 280, 295, 296, 370, 413, 428, 472, 518, 535, 590, 740, 749, 826, 856, 1036, 1070, 1180, 1295, 1480, 1498, 1652, 2065, 2072, 2140, 2183, 2360, 2590, 2996, 3304, 3745, 3959, 4130, 4280, 4366, 5180, 5992, 6313, 7490, 7918, 8260, 8732, 10360, 10915, 12626, 14980, 15281, 15836, 16520, 17464, 19795, 21830, 25252, 27713, 29960, 30562, 31565, 31672, 39590, 43660, 44191, 50504, 55426, 61124, 63130, 76405, 79180, 87320, 88382, 110852, 122248, 126260, 138565, 152810, 158360, 176764, 220955, 221704, 233581, 252520, 277130, 305620, 353528, 441910, 467162, 554260, 611240, 883820, 934324, 1108520, 1167905, 1635067, 1767640, 1868648, 2335810, 3270134, 4671620, 6540268, 8175335, 9343240, 13080536, 16350670, 32701340, 65402680]

約数ペア:

[(1, 65402680), (2, 32701340), (4, 16350670), (5, 13080536), (7, 9343240), (8, 8175335), (10, 6540268), (14, 4671620), (20, 3270134), (28, 2335810), (35, 1868648), (37, 1767640), (40, 1635067), (56, 1167905), (59, 1108520), (70, 934324), (74, 883820), (107, 611240), (118, 554260), (140, 467162), (148, 441910), (185, 353528), (214, 305620), (236, 277130), (259, 252520), (280, 233581), (295, 221704), (296, 220955), (370, 176764), (413, 158360), (428, 152810), (472, 138565), (518, 126260), (535, 122248), (590, 110852), (740, 88382), (749, 87320), (826, 79180), (856, 76405), (1036, 63130), (1070, 61124), (1180, 55426), (1295, 50504), (1480, 44191), (1498, 43660), (1652, 39590), (2065, 31672), (2072, 31565), (2140, 30562), (2183, 29960), (2360, 27713), (2590, 25252), (2996, 21830), (3304, 19795), (3745, 17464), (3959, 16520), (4130, 15836), (4280, 15281), (4366, 14980), (5180, 12626), (5992, 10915), (6313, 10360), (7490, 8732), (7918, 8260)]