20127775400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{619}}^1$

素因数の和:896

約数の個数: 192

約数和(自身を含む): 50740800000

約数和(自身を除く): 30613024600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 43, 50, 76, 86, 95, 100, 152, 172, 190, 199, 200, 215, 344, 380, 398, 430, 475, 619, 760, 796, 817, 860, 950, 995, 1075, 1238, 1592, 1634, 1720, 1900, 1990, 2150, 2476, 3095, 3268, 3781, 3800, 3980, 4085, 4300, 4952, 4975, 6190, 6536, 7562, 7960, 8170, 8557, 8600, 9950, 11761, 12380, 15124, 15475, 16340, 17114, 18905, 19900, 20425, 23522, 24760, 26617, 30248, 30950, 32680, 34228, 37810, 39800, 40850, 42785, 47044, 53234, 58805, 61900, 68456, 75620, 81700, 85570, 94088, 94525, 106468, 117610, 123181, 123800, 133085, 151240, 162583, 163400, 171140, 189050, 212936, 213925, 235220, 246362, 266170, 294025, 325166, 342280, 378100, 427850, 470440, 492724, 505723, 532340, 588050, 615905, 650332, 665425, 756200, 812915, 855700, 985448, 1011446, 1064680, 1176100, 1231810, 1300664, 1330850, 1625830, 1711400, 2022892, 2340439, 2352200, 2463620, 2528615, 2661700, 3079525, 3251660, 4045784, 4064575, 4680878, 4927240, 5057230, 5296783, 5323400, 6159050, 6503320, 8129150, 9361756, 10114460, 10593566, 11702195, 12318100, 12643075, 16258300, 18723512, 20228920, 21187132, 23404390, 24636200, 25286150, 26483915, 32516600, 42374264, 46808780, 50572300, 52967830, 58510975, 93617560, 100638877, 101144600, 105935660, 117021950, 132419575, 201277754, 211871320, 234043900, 264839150, 402555508, 468087800, 503194385, 529678300, 805111016, 1006388770, 1059356600, 2012777540, 2515971925, 4025555080, 5031943850, 10063887700, 20127775400]

約数ペア:

[(1, 20127775400), (2, 10063887700), (4, 5031943850), (5, 4025555080), (8, 2515971925), (10, 2012777540), (19, 1059356600), (20, 1006388770), (25, 805111016), (38, 529678300), (40, 503194385), (43, 468087800), (50, 402555508), (76, 264839150), (86, 234043900), (95, 211871320), (100, 201277754), (152, 132419575), (172, 117021950), (190, 105935660), (199, 101144600), (200, 100638877), (215, 93617560), (344, 58510975), (380, 52967830), (398, 50572300), (430, 46808780), (475, 42374264), (619, 32516600), (760, 26483915), (796, 25286150), (817, 24636200), (860, 23404390), (950, 21187132), (995, 20228920), (1075, 18723512), (1238, 16258300), (1592, 12643075), (1634, 12318100), (1720, 11702195), (1900, 10593566), (1990, 10114460), (2150, 9361756), (2476, 8129150), (3095, 6503320), (3268, 6159050), (3781, 5323400), (3800, 5296783), (3980, 5057230), (4085, 4927240), (4300, 4680878), (4952, 4064575), (4975, 4045784), (6190, 3251660), (6536, 3079525), (7562, 2661700), (7960, 2528615), (8170, 2463620), (8557, 2352200), (8600, 2340439), (9950, 2022892), (11761, 1711400), (12380, 1625830), (15124, 1330850), (15475, 1300664), (16340, 1231810), (17114, 1176100), (18905, 1064680), (19900, 1011446), (20425, 985448), (23522, 855700), (24760, 812915), (26617, 756200), (30248, 665425), (30950, 650332), (32680, 615905), (34228, 588050), (37810, 532340), (39800, 505723), (40850, 492724), (42785, 470440), (47044, 427850), (53234, 378100), (58805, 342280), (61900, 325166), (68456, 294025), (75620, 266170), (81700, 246362), (85570, 235220), (94088, 213925), (94525, 212936), (106468, 189050), (117610, 171140), (123181, 163400), (123800, 162583), (133085, 151240)]