1386885440

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{557}}^1$

素因数の和:856

約数の個数: 112

約数和(自身を含む): 3428780544

約数和(自身を除く): 2041895104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 251, 310, 320, 496, 502, 557, 620, 992, 1004, 1114, 1240, 1255, 1984, 2008, 2228, 2480, 2510, 2785, 4016, 4456, 4960, 5020, 5570, 7781, 8032, 8912, 9920, 10040, 11140, 15562, 16064, 17267, 17824, 20080, 22280, 31124, 34534, 35648, 38905, 40160, 44560, 62248, 69068, 77810, 80320, 86335, 89120, 124496, 138136, 139807, 155620, 172670, 178240, 248992, 276272, 279614, 311240, 345340, 497984, 552544, 559228, 622480, 690680, 699035, 1105088, 1118456, 1244960, 1381360, 1398070, 2236912, 2489920, 2762720, 2796140, 4334017, 4473824, 5525440, 5592280, 8668034, 8947648, 11184560, 17336068, 21670085, 22369120, 34672136, 43340170, 44738240, 69344272, 86680340, 138688544, 173360680, 277377088, 346721360, 693442720, 1386885440]

約数ペア:

[(1, 1386885440), (2, 693442720), (4, 346721360), (5, 277377088), (8, 173360680), (10, 138688544), (16, 86680340), (20, 69344272), (31, 44738240), (32, 43340170), (40, 34672136), (62, 22369120), (64, 21670085), (80, 17336068), (124, 11184560), (155, 8947648), (160, 8668034), (248, 5592280), (251, 5525440), (310, 4473824), (320, 4334017), (496, 2796140), (502, 2762720), (557, 2489920), (620, 2236912), (992, 1398070), (1004, 1381360), (1114, 1244960), (1240, 1118456), (1255, 1105088), (1984, 699035), (2008, 690680), (2228, 622480), (2480, 559228), (2510, 552544), (2785, 497984), (4016, 345340), (4456, 311240), (4960, 279614), (5020, 276272), (5570, 248992), (7781, 178240), (8032, 172670), (8912, 155620), (9920, 139807), (10040, 138136), (11140, 124496), (15562, 89120), (16064, 86335), (17267, 80320), (17824, 77810), (20080, 69068), (22280, 62248), (31124, 44560), (34534, 40160), (35648, 38905)]