19731262720

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{1973}}^1$

素因数の和:2608

約数の個数: 144

約数和(自身を含む): 51008649552

約数和(自身を除く): 31277386832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 601, 640, 832, 1040, 1202, 1280, 1664, 1973, 2080, 2404, 3005, 3328, 3946, 4160, 4808, 6010, 7813, 7892, 8320, 9616, 9865, 12020, 15626, 15784, 16640, 19232, 19730, 24040, 25649, 31252, 31568, 38464, 39065, 39460, 48080, 51298, 62504, 63136, 76928, 78130, 78920, 96160, 102596, 125008, 126272, 128245, 153856, 156260, 157840, 192320, 205192, 250016, 252544, 256490, 312520, 315680, 384640, 410384, 500032, 505088, 512980, 625040, 631360, 769280, 820768, 1000064, 1025960, 1185773, 1250080, 1262720, 1641536, 2000128, 2051920, 2371546, 2500160, 2525440, 3283072, 4103840, 4743092, 5000320, 5928865, 6566144, 8207680, 9486184, 10000640, 11857730, 15415049, 16415360, 18972368, 23715460, 30830098, 32830720, 37944736, 47430920, 61660196, 75889472, 77075245, 94861840, 123320392, 151778944, 154150490, 189723680, 246640784, 303557888, 308300980, 379447360, 493281568, 616601960, 758894720, 986563136, 1233203920, 1517789440, 1973126272, 2466407840, 3946252544, 4932815680, 9865631360, 19731262720]

約数ペア:

[(1, 19731262720), (2, 9865631360), (4, 4932815680), (5, 3946252544), (8, 2466407840), (10, 1973126272), (13, 1517789440), (16, 1233203920), (20, 986563136), (26, 758894720), (32, 616601960), (40, 493281568), (52, 379447360), (64, 308300980), (65, 303557888), (80, 246640784), (104, 189723680), (128, 154150490), (130, 151778944), (160, 123320392), (208, 94861840), (256, 77075245), (260, 75889472), (320, 61660196), (416, 47430920), (520, 37944736), (601, 32830720), (640, 30830098), (832, 23715460), (1040, 18972368), (1202, 16415360), (1280, 15415049), (1664, 11857730), (1973, 10000640), (2080, 9486184), (2404, 8207680), (3005, 6566144), (3328, 5928865), (3946, 5000320), (4160, 4743092), (4808, 4103840), (6010, 3283072), (7813, 2525440), (7892, 2500160), (8320, 2371546), (9616, 2051920), (9865, 2000128), (12020, 1641536), (15626, 1262720), (15784, 1250080), (16640, 1185773), (19232, 1025960), (19730, 1000064), (24040, 820768), (25649, 769280), (31252, 631360), (31568, 625040), (38464, 512980), (39065, 505088), (39460, 500032), (48080, 410384), (51298, 384640), (62504, 315680), (63136, 312520), (76928, 256490), (78130, 252544), (78920, 250016), (96160, 205192), (102596, 192320), (125008, 157840), (126272, 156260), (128245, 153856)]