25509280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 64350720

約数和(自身を除く): 38841440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 74, 80, 124, 139, 148, 155, 160, 185, 248, 278, 296, 310, 370, 496, 556, 592, 620, 695, 740, 992, 1112, 1147, 1184, 1240, 1390, 1480, 2224, 2294, 2480, 2780, 2960, 4309, 4448, 4588, 4960, 5143, 5560, 5735, 5920, 8618, 9176, 10286, 11120, 11470, 17236, 18352, 20572, 21545, 22240, 22940, 25715, 34472, 36704, 41144, 43090, 45880, 51430, 68944, 82288, 86180, 91760, 102860, 137888, 159433, 164576, 172360, 183520, 205720, 318866, 344720, 411440, 637732, 689440, 797165, 822880, 1275464, 1594330, 2550928, 3188660, 5101856, 6377320, 12754640, 25509280]

約数ペア:

[(1, 25509280), (2, 12754640), (4, 6377320), (5, 5101856), (8, 3188660), (10, 2550928), (16, 1594330), (20, 1275464), (31, 822880), (32, 797165), (37, 689440), (40, 637732), (62, 411440), (74, 344720), (80, 318866), (124, 205720), (139, 183520), (148, 172360), (155, 164576), (160, 159433), (185, 137888), (248, 102860), (278, 91760), (296, 86180), (310, 82288), (370, 68944), (496, 51430), (556, 45880), (592, 43090), (620, 41144), (695, 36704), (740, 34472), (992, 25715), (1112, 22940), (1147, 22240), (1184, 21545), (1240, 20572), (1390, 18352), (1480, 17236), (2224, 11470), (2294, 11120), (2480, 10286), (2780, 9176), (2960, 8618), (4309, 5920), (4448, 5735), (4588, 5560), (4960, 5143)]