790787680

素因数分解:

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

素因数の和:253

約数の個数: 144

約数和(自身を含む): 1996883280

約数和(自身を除く): 1206095600

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, 961, 992, 1112, 1147, 1184, 1240, 1390, 1480, 1922, 2224, 2294, 2480, 2780, 2960, 3844, 4309, 4448, 4588, 4805, 4960, 5143, 5560, 5735, 5920, 7688, 8618, 9176, 9610, 10286, 11120, 11470, 15376, 17236, 18352, 19220, 20572, 21545, 22240, 22940, 25715, 30752, 34472, 35557, 36704, 38440, 41144, 43090, 45880, 51430, 68944, 71114, 76880, 82288, 86180, 91760, 102860, 133579, 137888, 142228, 153760, 159433, 164576, 172360, 177785, 183520, 205720, 267158, 284456, 318866, 344720, 355570, 411440, 534316, 568912, 637732, 667895, 689440, 711140, 797165, 822880, 1068632, 1137824, 1275464, 1335790, 1422280, 1594330, 2137264, 2550928, 2671580, 2844560, 3188660, 4274528, 4942423, 5101856, 5343160, 5689120, 6377320, 9884846, 10686320, 12754640, 19769692, 21372640, 24712115, 25509280, 39539384, 49424230, 79078768, 98848460, 158157536, 197696920, 395393840, 790787680]

約数ペア:

[(1, 790787680), (2, 395393840), (4, 197696920), (5, 158157536), (8, 98848460), (10, 79078768), (16, 49424230), (20, 39539384), (31, 25509280), (32, 24712115), (37, 21372640), (40, 19769692), (62, 12754640), (74, 10686320), (80, 9884846), (124, 6377320), (139, 5689120), (148, 5343160), (155, 5101856), (160, 4942423), (185, 4274528), (248, 3188660), (278, 2844560), (296, 2671580), (310, 2550928), (370, 2137264), (496, 1594330), (556, 1422280), (592, 1335790), (620, 1275464), (695, 1137824), (740, 1068632), (961, 822880), (992, 797165), (1112, 711140), (1147, 689440), (1184, 667895), (1240, 637732), (1390, 568912), (1480, 534316), (1922, 411440), (2224, 355570), (2294, 344720), (2480, 318866), (2780, 284456), (2960, 267158), (3844, 205720), (4309, 183520), (4448, 177785), (4588, 172360), (4805, 164576), (4960, 159433), (5143, 153760), (5560, 142228), (5735, 137888), (5920, 133579), (7688, 102860), (8618, 91760), (9176, 86180), (9610, 82288), (10286, 76880), (11120, 71114), (11470, 68944), (15376, 51430), (17236, 45880), (18352, 43090), (19220, 41144), (20572, 38440), (21545, 36704), (22240, 35557), (22940, 34472), (25715, 30752)]