25771120880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:983

約数の個数: 160

約数和(自身を含む): 63043584000

約数和(自身を除く): 37272463120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 199, 248, 310, 316, 395, 398, 496, 620, 632, 661, 790, 796, 995, 1240, 1264, 1322, 1580, 1592, 1990, 2449, 2480, 2644, 3160, 3184, 3305, 3980, 4898, 5288, 6169, 6320, 6610, 7960, 9796, 10576, 12245, 12338, 13220, 15721, 15920, 19592, 20491, 24490, 24676, 26440, 30845, 31442, 39184, 40982, 48980, 49352, 52219, 52880, 61690, 62884, 78605, 81964, 97960, 98704, 102455, 104438, 123380, 125768, 131539, 157210, 163928, 195920, 204910, 208876, 246760, 251536, 261095, 263078, 314420, 327856, 409820, 417752, 487351, 493520, 522190, 526156, 628840, 657695, 819640, 835504, 974702, 1044380, 1052312, 1257680, 1315390, 1618789, 1639280, 1949404, 2088760, 2104624, 2436755, 2630780, 3237578, 3898808, 4077709, 4177520, 4873510, 5261560, 6475156, 7797616, 8093945, 8155418, 9747020, 10391581, 10523120, 12950312, 16187890, 16310836, 19494040, 20388545, 20783162, 25900624, 32375780, 32621672, 38988080, 40777090, 41566324, 51957905, 64751560, 65243344, 81554180, 83132648, 103915810, 129503120, 163108360, 166265296, 207831620, 322139011, 326216720, 415663240, 644278022, 831326480, 1288556044, 1610695055, 2577112088, 3221390110, 5154224176, 6442780220, 12885560440, 25771120880]

約数ペア:

[(1, 25771120880), (2, 12885560440), (4, 6442780220), (5, 5154224176), (8, 3221390110), (10, 2577112088), (16, 1610695055), (20, 1288556044), (31, 831326480), (40, 644278022), (62, 415663240), (79, 326216720), (80, 322139011), (124, 207831620), (155, 166265296), (158, 163108360), (199, 129503120), (248, 103915810), (310, 83132648), (316, 81554180), (395, 65243344), (398, 64751560), (496, 51957905), (620, 41566324), (632, 40777090), (661, 38988080), (790, 32621672), (796, 32375780), (995, 25900624), (1240, 20783162), (1264, 20388545), (1322, 19494040), (1580, 16310836), (1592, 16187890), (1990, 12950312), (2449, 10523120), (2480, 10391581), (2644, 9747020), (3160, 8155418), (3184, 8093945), (3305, 7797616), (3980, 6475156), (4898, 5261560), (5288, 4873510), (6169, 4177520), (6320, 4077709), (6610, 3898808), (7960, 3237578), (9796, 2630780), (10576, 2436755), (12245, 2104624), (12338, 2088760), (13220, 1949404), (15721, 1639280), (15920, 1618789), (19592, 1315390), (20491, 1257680), (24490, 1052312), (24676, 1044380), (26440, 974702), (30845, 835504), (31442, 819640), (39184, 657695), (40982, 628840), (48980, 526156), (49352, 522190), (52219, 493520), (52880, 487351), (61690, 417752), (62884, 409820), (78605, 327856), (81964, 314420), (97960, 263078), (98704, 261095), (102455, 251536), (104438, 246760), (123380, 208876), (125768, 204910), (131539, 195920), (157210, 163928)]