20198885120

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{10267}}^1$

素因数の和:10370

約数の個数: 144

約数和(自身を含む): 51000334560

約数和(自身を除く): 30801449440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 53, 58, 64, 80, 106, 116, 128, 145, 160, 212, 232, 256, 265, 290, 320, 424, 464, 530, 580, 640, 848, 928, 1060, 1160, 1280, 1537, 1696, 1856, 2120, 2320, 3074, 3392, 3712, 4240, 4640, 6148, 6784, 7424, 7685, 8480, 9280, 10267, 12296, 13568, 15370, 16960, 18560, 20534, 24592, 30740, 33920, 37120, 41068, 49184, 51335, 61480, 67840, 82136, 98368, 102670, 122960, 164272, 196736, 205340, 245920, 297743, 328544, 393472, 410680, 491840, 544151, 595486, 657088, 821360, 983680, 1088302, 1190972, 1314176, 1488715, 1642720, 1967360, 2176604, 2381944, 2628352, 2720755, 2977430, 3285440, 4353208, 4763888, 5441510, 5954860, 6570880, 8706416, 9527776, 10883020, 11909720, 13141760, 15780379, 17412832, 19055552, 21766040, 23819440, 31560758, 34825664, 38111104, 43532080, 47638880, 63121516, 69651328, 76222208, 78901895, 87064160, 95277760, 126243032, 139302656, 157803790, 174128320, 190555520, 252486064, 315607580, 348256640, 381111040, 504972128, 631215160, 696513280, 1009944256, 1262430320, 2019888512, 2524860640, 4039777024, 5049721280, 10099442560, 20198885120]

約数ペア:

[(1, 20198885120), (2, 10099442560), (4, 5049721280), (5, 4039777024), (8, 2524860640), (10, 2019888512), (16, 1262430320), (20, 1009944256), (29, 696513280), (32, 631215160), (40, 504972128), (53, 381111040), (58, 348256640), (64, 315607580), (80, 252486064), (106, 190555520), (116, 174128320), (128, 157803790), (145, 139302656), (160, 126243032), (212, 95277760), (232, 87064160), (256, 78901895), (265, 76222208), (290, 69651328), (320, 63121516), (424, 47638880), (464, 43532080), (530, 38111104), (580, 34825664), (640, 31560758), (848, 23819440), (928, 21766040), (1060, 19055552), (1160, 17412832), (1280, 15780379), (1537, 13141760), (1696, 11909720), (1856, 10883020), (2120, 9527776), (2320, 8706416), (3074, 6570880), (3392, 5954860), (3712, 5441510), (4240, 4763888), (4640, 4353208), (6148, 3285440), (6784, 2977430), (7424, 2720755), (7685, 2628352), (8480, 2381944), (9280, 2176604), (10267, 1967360), (12296, 1642720), (13568, 1488715), (15370, 1314176), (16960, 1190972), (18560, 1088302), (20534, 983680), (24592, 821360), (30740, 657088), (33920, 595486), (37120, 544151), (41068, 491840), (49184, 410680), (51335, 393472), (61480, 328544), (67840, 297743), (82136, 245920), (98368, 205340), (102670, 196736), (122960, 164272)]