20184501800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:748

約数の個数: 192

約数和(自身を含む): 50601672000

約数和(自身を除く): 30417170200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 59, 76, 95, 100, 118, 152, 190, 197, 200, 236, 295, 380, 394, 457, 472, 475, 590, 760, 788, 914, 950, 985, 1121, 1180, 1475, 1576, 1828, 1900, 1970, 2242, 2285, 2360, 2950, 3656, 3743, 3800, 3940, 4484, 4570, 4925, 5605, 5900, 7486, 7880, 8683, 8968, 9140, 9850, 11210, 11425, 11623, 11800, 14972, 17366, 18280, 18715, 19700, 22420, 22850, 23246, 26963, 28025, 29944, 34732, 37430, 39400, 43415, 44840, 45700, 46492, 53926, 56050, 58115, 69464, 74860, 86830, 90029, 91400, 92984, 93575, 107852, 112100, 116230, 134815, 149720, 173660, 180058, 187150, 215704, 217075, 220837, 224200, 232460, 269630, 290575, 347320, 360116, 374300, 434150, 441674, 450145, 464920, 512297, 539260, 581150, 674075, 720232, 748600, 868300, 883348, 900290, 1024594, 1078520, 1104185, 1162300, 1348150, 1710551, 1736600, 1766696, 1800580, 2049188, 2208370, 2250725, 2324600, 2561485, 2696300, 3421102, 3601160, 4098376, 4416740, 4501450, 5122970, 5311711, 5392600, 5520925, 6842204, 8552755, 8833480, 9002900, 10245940, 10623422, 11041850, 12807425, 13684408, 17105510, 18005800, 20491880, 21246844, 22083700, 25614850, 26558555, 34211020, 42493688, 42763775, 44167400, 51229700, 53117110, 68422040, 85527550, 100922509, 102459400, 106234220, 132792775, 171055100, 201845018, 212468440, 265585550, 342110200, 403690036, 504612545, 531171100, 807380072, 1009225090, 1062342200, 2018450180, 2523062725, 4036900360, 5046125450, 10092250900, 20184501800]

約数ペア:

[(1, 20184501800), (2, 10092250900), (4, 5046125450), (5, 4036900360), (8, 2523062725), (10, 2018450180), (19, 1062342200), (20, 1009225090), (25, 807380072), (38, 531171100), (40, 504612545), (50, 403690036), (59, 342110200), (76, 265585550), (95, 212468440), (100, 201845018), (118, 171055100), (152, 132792775), (190, 106234220), (197, 102459400), (200, 100922509), (236, 85527550), (295, 68422040), (380, 53117110), (394, 51229700), (457, 44167400), (472, 42763775), (475, 42493688), (590, 34211020), (760, 26558555), (788, 25614850), (914, 22083700), (950, 21246844), (985, 20491880), (1121, 18005800), (1180, 17105510), (1475, 13684408), (1576, 12807425), (1828, 11041850), (1900, 10623422), (1970, 10245940), (2242, 9002900), (2285, 8833480), (2360, 8552755), (2950, 6842204), (3656, 5520925), (3743, 5392600), (3800, 5311711), (3940, 5122970), (4484, 4501450), (4570, 4416740), (4925, 4098376), (5605, 3601160), (5900, 3421102), (7486, 2696300), (7880, 2561485), (8683, 2324600), (8968, 2250725), (9140, 2208370), (9850, 2049188), (11210, 1800580), (11425, 1766696), (11623, 1736600), (11800, 1710551), (14972, 1348150), (17366, 1162300), (18280, 1104185), (18715, 1078520), (19700, 1024594), (22420, 900290), (22850, 883348), (23246, 868300), (26963, 748600), (28025, 720232), (29944, 674075), (34732, 581150), (37430, 539260), (39400, 512297), (43415, 464920), (44840, 450145), (45700, 441674), (46492, 434150), (53926, 374300), (56050, 360116), (58115, 347320), (69464, 290575), (74860, 269630), (86830, 232460), (90029, 224200), (91400, 220837), (92984, 217075), (93575, 215704), (107852, 187150), (112100, 180058), (116230, 173660), (134815, 149720)]