20128291260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{61363}}^1$

素因数の和:61464

約数の個数: 192

約数和(自身を含む): 71256858624

約数和(自身を除く): 51128567364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 71, 77, 84, 105, 110, 132, 140, 142, 154, 165, 210, 213, 220, 231, 284, 308, 330, 355, 385, 420, 426, 462, 497, 660, 710, 770, 781, 852, 924, 994, 1065, 1155, 1420, 1491, 1540, 1562, 1988, 2130, 2310, 2343, 2485, 2982, 3124, 3905, 4260, 4620, 4686, 4970, 5467, 5964, 7455, 7810, 9372, 9940, 10934, 11715, 14910, 15620, 16401, 21868, 23430, 27335, 29820, 32802, 46860, 54670, 61363, 65604, 82005, 109340, 122726, 164010, 184089, 245452, 306815, 328020, 368178, 429541, 613630, 674993, 736356, 859082, 920445, 1227260, 1288623, 1349986, 1718164, 1840890, 2024979, 2147705, 2577246, 2699972, 3374965, 3681780, 4049958, 4295410, 4356773, 4724951, 5154492, 6443115, 6749930, 8099916, 8590820, 8713546, 9449902, 10124895, 12886230, 13070319, 13499860, 14174853, 17427092, 18899804, 20249790, 21783865, 23624755, 25772460, 26140638, 28349706, 30497411, 40499580, 43567730, 47249510, 47924503, 52281276, 56699412, 60994822, 65351595, 70874265, 87135460, 91492233, 94499020, 95849006, 121989644, 130703190, 141748530, 143773509, 152487055, 182984466, 191698012, 239622515, 261406380, 283497060, 287547018, 304974110, 335471521, 365968932, 457461165, 479245030, 575094036, 609948220, 670943042, 718867545, 914922330, 958490060, 1006414563, 1341886084, 1437735090, 1677357605, 1829844660, 2012829126, 2875470180, 3354715210, 4025658252, 5032072815, 6709430420, 10064145630, 20128291260]

約数ペア:

[(1, 20128291260), (2, 10064145630), (3, 6709430420), (4, 5032072815), (5, 4025658252), (6, 3354715210), (7, 2875470180), (10, 2012829126), (11, 1829844660), (12, 1677357605), (14, 1437735090), (15, 1341886084), (20, 1006414563), (21, 958490060), (22, 914922330), (28, 718867545), (30, 670943042), (33, 609948220), (35, 575094036), (42, 479245030), (44, 457461165), (55, 365968932), (60, 335471521), (66, 304974110), (70, 287547018), (71, 283497060), (77, 261406380), (84, 239622515), (105, 191698012), (110, 182984466), (132, 152487055), (140, 143773509), (142, 141748530), (154, 130703190), (165, 121989644), (210, 95849006), (213, 94499020), (220, 91492233), (231, 87135460), (284, 70874265), (308, 65351595), (330, 60994822), (355, 56699412), (385, 52281276), (420, 47924503), (426, 47249510), (462, 43567730), (497, 40499580), (660, 30497411), (710, 28349706), (770, 26140638), (781, 25772460), (852, 23624755), (924, 21783865), (994, 20249790), (1065, 18899804), (1155, 17427092), (1420, 14174853), (1491, 13499860), (1540, 13070319), (1562, 12886230), (1988, 10124895), (2130, 9449902), (2310, 8713546), (2343, 8590820), (2485, 8099916), (2982, 6749930), (3124, 6443115), (3905, 5154492), (4260, 4724951), (4620, 4356773), (4686, 4295410), (4970, 4049958), (5467, 3681780), (5964, 3374965), (7455, 2699972), (7810, 2577246), (9372, 2147705), (9940, 2024979), (10934, 1840890), (11715, 1718164), (14910, 1349986), (15620, 1288623), (16401, 1227260), (21868, 920445), (23430, 859082), (27335, 736356), (29820, 674993), (32802, 613630), (46860, 429541), (54670, 368178), (61363, 328020), (65604, 306815), (82005, 245452), (109340, 184089), (122726, 164010)]