12800811400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{659}}^1$

素因数の和:960

約数の個数: 192

約数和(自身を含む): 33272870400

約数和(自身を除く): 20472059000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 130, 155, 200, 241, 248, 260, 310, 325, 403, 482, 520, 620, 650, 659, 775, 806, 964, 1205, 1240, 1300, 1318, 1550, 1612, 1928, 2015, 2410, 2600, 2636, 3100, 3133, 3224, 3295, 4030, 4820, 5272, 6025, 6200, 6266, 6590, 7471, 8060, 8567, 9640, 10075, 12050, 12532, 13180, 14942, 15665, 16120, 16475, 17134, 20150, 20429, 24100, 25064, 26360, 29884, 31330, 32950, 34268, 37355, 40300, 40858, 42835, 48200, 59768, 62660, 65900, 68536, 74710, 78325, 80600, 81716, 85670, 97123, 102145, 125320, 131800, 149420, 156650, 158819, 163432, 171340, 186775, 194246, 204290, 214175, 265577, 298840, 313300, 317638, 342680, 373550, 388492, 408580, 428350, 485615, 510725, 531154, 626600, 635276, 747100, 776984, 794095, 817160, 856700, 971230, 1021450, 1062308, 1270552, 1327885, 1494200, 1588190, 1713400, 1942460, 2042900, 2064647, 2124616, 2428075, 2655770, 3176380, 3884920, 3970475, 4085800, 4129294, 4856150, 4923389, 5311540, 6352760, 6639425, 7940950, 8258588, 9712300, 9846778, 10323235, 10623080, 13278850, 15881900, 16517176, 19424600, 19693556, 20646470, 24616945, 26557700, 31763800, 39387112, 41292940, 49233890, 51616175, 53115400, 64004057, 82585880, 98467780, 103232350, 123084725, 128008114, 196935560, 206464700, 246169450, 256016228, 320020285, 412929400, 492338900, 512032456, 640040570, 984677800, 1280081140, 1600101425, 2560162280, 3200202850, 6400405700, 12800811400]

約数ペア:

[(1, 12800811400), (2, 6400405700), (4, 3200202850), (5, 2560162280), (8, 1600101425), (10, 1280081140), (13, 984677800), (20, 640040570), (25, 512032456), (26, 492338900), (31, 412929400), (40, 320020285), (50, 256016228), (52, 246169450), (62, 206464700), (65, 196935560), (100, 128008114), (104, 123084725), (124, 103232350), (130, 98467780), (155, 82585880), (200, 64004057), (241, 53115400), (248, 51616175), (260, 49233890), (310, 41292940), (325, 39387112), (403, 31763800), (482, 26557700), (520, 24616945), (620, 20646470), (650, 19693556), (659, 19424600), (775, 16517176), (806, 15881900), (964, 13278850), (1205, 10623080), (1240, 10323235), (1300, 9846778), (1318, 9712300), (1550, 8258588), (1612, 7940950), (1928, 6639425), (2015, 6352760), (2410, 5311540), (2600, 4923389), (2636, 4856150), (3100, 4129294), (3133, 4085800), (3224, 3970475), (3295, 3884920), (4030, 3176380), (4820, 2655770), (5272, 2428075), (6025, 2124616), (6200, 2064647), (6266, 2042900), (6590, 1942460), (7471, 1713400), (8060, 1588190), (8567, 1494200), (9640, 1327885), (10075, 1270552), (12050, 1062308), (12532, 1021450), (13180, 971230), (14942, 856700), (15665, 817160), (16120, 794095), (16475, 776984), (17134, 747100), (20150, 635276), (20429, 626600), (24100, 531154), (25064, 510725), (26360, 485615), (29884, 428350), (31330, 408580), (32950, 388492), (34268, 373550), (37355, 342680), (40300, 317638), (40858, 313300), (42835, 298840), (48200, 265577), (59768, 214175), (62660, 204290), (65900, 194246), (68536, 186775), (74710, 171340), (78325, 163432), (80600, 158819), (81716, 156650), (85670, 149420), (97123, 131800), (102145, 125320)]