19903477360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{5113}}^1$

素因数の和:5355

約数の個数: 160

約数和(自身を含む): 52734749760

約数和(自身を除く): 32831272400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 197, 208, 247, 260, 304, 380, 394, 494, 520, 760, 788, 985, 988, 1040, 1235, 1520, 1576, 1970, 1976, 2470, 2561, 3152, 3743, 3940, 3952, 4940, 5113, 5122, 7486, 7880, 9880, 10226, 10244, 12805, 14972, 15760, 18715, 19760, 20452, 20488, 25565, 25610, 29944, 37430, 40904, 40976, 48659, 51130, 51220, 59888, 66469, 74860, 81808, 97147, 97318, 102260, 102440, 132938, 149720, 194294, 194636, 204520, 204880, 243295, 265876, 299440, 332345, 388588, 389272, 409040, 485735, 486590, 531752, 664690, 777176, 778544, 971470, 973180, 1007261, 1063504, 1262911, 1329380, 1554352, 1942940, 1946360, 2014522, 2525822, 2658760, 3885880, 3892720, 4029044, 5036305, 5051644, 5317520, 6314555, 7771760, 8058088, 10072610, 10103288, 12629110, 13094393, 16116176, 19137959, 20145220, 20206576, 25258220, 26188786, 38275918, 40290440, 50516440, 52377572, 65471965, 76551836, 80580880, 95689795, 101032880, 104755144, 130943930, 153103672, 191379590, 209510288, 248793467, 261887860, 306207344, 382759180, 497586934, 523775720, 765518360, 995173868, 1047551440, 1243967335, 1531036720, 1990347736, 2487934670, 3980695472, 4975869340, 9951738680, 19903477360]

約数ペア:

[(1, 19903477360), (2, 9951738680), (4, 4975869340), (5, 3980695472), (8, 2487934670), (10, 1990347736), (13, 1531036720), (16, 1243967335), (19, 1047551440), (20, 995173868), (26, 765518360), (38, 523775720), (40, 497586934), (52, 382759180), (65, 306207344), (76, 261887860), (80, 248793467), (95, 209510288), (104, 191379590), (130, 153103672), (152, 130943930), (190, 104755144), (197, 101032880), (208, 95689795), (247, 80580880), (260, 76551836), (304, 65471965), (380, 52377572), (394, 50516440), (494, 40290440), (520, 38275918), (760, 26188786), (788, 25258220), (985, 20206576), (988, 20145220), (1040, 19137959), (1235, 16116176), (1520, 13094393), (1576, 12629110), (1970, 10103288), (1976, 10072610), (2470, 8058088), (2561, 7771760), (3152, 6314555), (3743, 5317520), (3940, 5051644), (3952, 5036305), (4940, 4029044), (5113, 3892720), (5122, 3885880), (7486, 2658760), (7880, 2525822), (9880, 2014522), (10226, 1946360), (10244, 1942940), (12805, 1554352), (14972, 1329380), (15760, 1262911), (18715, 1063504), (19760, 1007261), (20452, 973180), (20488, 971470), (25565, 778544), (25610, 777176), (29944, 664690), (37430, 531752), (40904, 486590), (40976, 485735), (48659, 409040), (51130, 389272), (51220, 388588), (59888, 332345), (66469, 299440), (74860, 265876), (81808, 243295), (97147, 204880), (97318, 204520), (102260, 194636), (102440, 194294), (132938, 149720)]