245905020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 778272768

約数和(自身を除く): 532367748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 127, 155, 180, 186, 254, 279, 310, 347, 372, 381, 465, 508, 558, 620, 635, 694, 762, 930, 1041, 1116, 1143, 1270, 1388, 1395, 1524, 1735, 1860, 1905, 2082, 2286, 2540, 2790, 3123, 3470, 3810, 3937, 4164, 4572, 5205, 5580, 5715, 6246, 6940, 7620, 7874, 10410, 10757, 11430, 11811, 12492, 15615, 15748, 19685, 20820, 21514, 22860, 23622, 31230, 32271, 35433, 39370, 43028, 44069, 47244, 53785, 59055, 62460, 64542, 70866, 78740, 88138, 96813, 107570, 118110, 129084, 132207, 141732, 161355, 176276, 177165, 193626, 215140, 220345, 236220, 264414, 322710, 354330, 387252, 396621, 440690, 484065, 528828, 645420, 661035, 708660, 793242, 881380, 968130, 1322070, 1366139, 1586484, 1936260, 1983105, 2644140, 2732278, 3966210, 4098417, 5464556, 6830695, 7932420, 8196834, 12295251, 13661390, 16393668, 20492085, 24590502, 27322780, 40984170, 49181004, 61476255, 81968340, 122952510, 245905020]

約数ペア:

[(1, 245905020), (2, 122952510), (3, 81968340), (4, 61476255), (5, 49181004), (6, 40984170), (9, 27322780), (10, 24590502), (12, 20492085), (15, 16393668), (18, 13661390), (20, 12295251), (30, 8196834), (31, 7932420), (36, 6830695), (45, 5464556), (60, 4098417), (62, 3966210), (90, 2732278), (93, 2644140), (124, 1983105), (127, 1936260), (155, 1586484), (180, 1366139), (186, 1322070), (254, 968130), (279, 881380), (310, 793242), (347, 708660), (372, 661035), (381, 645420), (465, 528828), (508, 484065), (558, 440690), (620, 396621), (635, 387252), (694, 354330), (762, 322710), (930, 264414), (1041, 236220), (1116, 220345), (1143, 215140), (1270, 193626), (1388, 177165), (1395, 176276), (1524, 161355), (1735, 141732), (1860, 132207), (1905, 129084), (2082, 118110), (2286, 107570), (2540, 96813), (2790, 88138), (3123, 78740), (3470, 70866), (3810, 64542), (3937, 62460), (4164, 59055), (4572, 53785), (5205, 47244), (5580, 44069), (5715, 43028), (6246, 39370), (6940, 35433), (7620, 32271), (7874, 31230), (10410, 23622), (10757, 22860), (11430, 21514), (11811, 20820), (12492, 19685), (15615, 15748)]