391186670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{557}}^1$

素因数の和:777

約数の個数: 64

約数和(自身を含む): 822804480

約数和(自身を除く): 431617810

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 127, 158, 254, 395, 553, 557, 635, 790, 889, 1106, 1114, 1270, 1778, 2765, 2785, 3899, 4445, 5530, 5570, 7798, 8890, 10033, 19495, 20066, 38990, 44003, 50165, 70231, 70739, 88006, 100330, 140462, 141478, 220015, 308021, 351155, 353695, 440030, 495173, 616042, 702310, 707390, 990346, 1540105, 2475865, 3080210, 4951730, 5588381, 11176762, 27941905, 39118667, 55883810, 78237334, 195593335, 391186670]

約数ペア:

[(1, 391186670), (2, 195593335), (5, 78237334), (7, 55883810), (10, 39118667), (14, 27941905), (35, 11176762), (70, 5588381), (79, 4951730), (127, 3080210), (158, 2475865), (254, 1540105), (395, 990346), (553, 707390), (557, 702310), (635, 616042), (790, 495173), (889, 440030), (1106, 353695), (1114, 351155), (1270, 308021), (1778, 220015), (2765, 141478), (2785, 140462), (3899, 100330), (4445, 88006), (5530, 70739), (5570, 70231), (7798, 50165), (8890, 44003), (10033, 38990), (19495, 20066)]