128993920

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:354

約数の個数: 128

約数和(自身を含む): 342377280

約数和(自身を除く): 213383360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 73, 80, 88, 110, 128, 146, 160, 176, 220, 251, 292, 320, 352, 365, 440, 502, 584, 640, 704, 730, 803, 880, 1004, 1168, 1255, 1408, 1460, 1606, 1760, 2008, 2336, 2510, 2761, 2920, 3212, 3520, 4015, 4016, 4672, 5020, 5522, 5840, 6424, 7040, 8030, 8032, 9344, 10040, 11044, 11680, 12848, 13805, 16060, 16064, 18323, 20080, 22088, 23360, 25696, 27610, 32120, 32128, 36646, 40160, 44176, 46720, 51392, 55220, 64240, 73292, 80320, 88352, 91615, 102784, 110440, 128480, 146584, 160640, 176704, 183230, 201553, 220880, 256960, 293168, 353408, 366460, 403106, 441760, 513920, 586336, 732920, 806212, 883520, 1007765, 1172672, 1465840, 1612424, 1767040, 2015530, 2345344, 2931680, 3224848, 4031060, 5863360, 6449696, 8062120, 11726720, 12899392, 16124240, 25798784, 32248480, 64496960, 128993920]

約数ペア:

[(1, 128993920), (2, 64496960), (4, 32248480), (5, 25798784), (8, 16124240), (10, 12899392), (11, 11726720), (16, 8062120), (20, 6449696), (22, 5863360), (32, 4031060), (40, 3224848), (44, 2931680), (55, 2345344), (64, 2015530), (73, 1767040), (80, 1612424), (88, 1465840), (110, 1172672), (128, 1007765), (146, 883520), (160, 806212), (176, 732920), (220, 586336), (251, 513920), (292, 441760), (320, 403106), (352, 366460), (365, 353408), (440, 293168), (502, 256960), (584, 220880), (640, 201553), (704, 183230), (730, 176704), (803, 160640), (880, 146584), (1004, 128480), (1168, 110440), (1255, 102784), (1408, 91615), (1460, 88352), (1606, 80320), (1760, 73292), (2008, 64240), (2336, 55220), (2510, 51392), (2761, 46720), (2920, 44176), (3212, 40160), (3520, 36646), (4015, 32128), (4016, 32120), (4672, 27610), (5020, 25696), (5522, 23360), (5840, 22088), (6424, 20080), (7040, 18323), (8030, 16064), (8032, 16060), (9344, 13805), (10040, 12848), (11044, 11680)]