20189385800

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:556

約数の個数: 192

約数和(自身を含む): 49496832000

約数和(自身を除く): 29307446200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 47, 50, 86, 94, 100, 172, 188, 199, 200, 215, 235, 251, 344, 376, 398, 430, 470, 502, 796, 860, 940, 995, 1004, 1075, 1175, 1255, 1592, 1720, 1880, 1990, 2008, 2021, 2150, 2350, 2510, 3980, 4042, 4300, 4700, 4975, 5020, 6275, 7960, 8084, 8557, 8600, 9353, 9400, 9950, 10040, 10105, 10793, 11797, 12550, 16168, 17114, 18706, 19900, 20210, 21586, 23594, 25100, 34228, 37412, 39800, 40420, 42785, 43172, 46765, 47188, 49949, 50200, 50525, 53965, 58985, 68456, 74824, 80840, 85570, 86344, 93530, 94376, 99898, 101050, 107930, 117970, 171140, 187060, 199796, 202100, 213925, 215860, 233825, 235940, 249745, 269825, 294925, 342280, 374120, 399592, 402179, 404200, 427850, 431720, 467650, 471880, 499490, 507271, 539650, 589850, 804358, 855700, 935300, 998980, 1014542, 1079300, 1179700, 1248725, 1608716, 1711400, 1870600, 1997960, 2010895, 2029084, 2147807, 2158600, 2347603, 2359400, 2497450, 2536355, 3217432, 4021790, 4058168, 4295614, 4695206, 4994900, 5072710, 8043580, 8591228, 9390412, 9989800, 10054475, 10145420, 10739035, 11738015, 12681775, 16087160, 17182456, 18780824, 20108950, 20290840, 21478070, 23476030, 25363550, 40217900, 42956140, 46952060, 50727100, 53695175, 58690075, 80435800, 85912280, 93904120, 100946929, 101454200, 107390350, 117380150, 201893858, 214780700, 234760300, 403787716, 429561400, 469520600, 504734645, 807575432, 1009469290, 2018938580, 2523673225, 4037877160, 5047346450, 10094692900, 20189385800]

約数ペア:

[(1, 20189385800), (2, 10094692900), (4, 5047346450), (5, 4037877160), (8, 2523673225), (10, 2018938580), (20, 1009469290), (25, 807575432), (40, 504734645), (43, 469520600), (47, 429561400), (50, 403787716), (86, 234760300), (94, 214780700), (100, 201893858), (172, 117380150), (188, 107390350), (199, 101454200), (200, 100946929), (215, 93904120), (235, 85912280), (251, 80435800), (344, 58690075), (376, 53695175), (398, 50727100), (430, 46952060), (470, 42956140), (502, 40217900), (796, 25363550), (860, 23476030), (940, 21478070), (995, 20290840), (1004, 20108950), (1075, 18780824), (1175, 17182456), (1255, 16087160), (1592, 12681775), (1720, 11738015), (1880, 10739035), (1990, 10145420), (2008, 10054475), (2021, 9989800), (2150, 9390412), (2350, 8591228), (2510, 8043580), (3980, 5072710), (4042, 4994900), (4300, 4695206), (4700, 4295614), (4975, 4058168), (5020, 4021790), (6275, 3217432), (7960, 2536355), (8084, 2497450), (8557, 2359400), (8600, 2347603), (9353, 2158600), (9400, 2147807), (9950, 2029084), (10040, 2010895), (10105, 1997960), (10793, 1870600), (11797, 1711400), (12550, 1608716), (16168, 1248725), (17114, 1179700), (18706, 1079300), (19900, 1014542), (20210, 998980), (21586, 935300), (23594, 855700), (25100, 804358), (34228, 589850), (37412, 539650), (39800, 507271), (40420, 499490), (42785, 471880), (43172, 467650), (46765, 431720), (47188, 427850), (49949, 404200), (50200, 402179), (50525, 399592), (53965, 374120), (58985, 342280), (68456, 294925), (74824, 269825), (80840, 249745), (85570, 235940), (86344, 233825), (93530, 215860), (94376, 213925), (99898, 202100), (101050, 199796), (107930, 187060), (117970, 171140)]