399778834

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{823}}^1$

素因数の和:1019

約数の個数: 64

約数和(自身を含む): 787401216

約数和(自身を除く): 387622382

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 91, 119, 157, 182, 221, 238, 314, 442, 823, 1099, 1547, 1646, 2041, 2198, 2669, 3094, 4082, 5338, 5761, 10699, 11522, 13991, 14287, 18683, 21398, 27982, 28574, 34697, 37366, 69394, 74893, 97937, 129211, 149786, 181883, 195874, 242879, 258422, 363766, 485758, 904477, 1273181, 1679743, 1808954, 2196587, 2546362, 3359486, 4393174, 11758201, 15376109, 23516402, 28555631, 30752218, 57111262, 199889417, 399778834]

約数ペア:

[(1, 399778834), (2, 199889417), (7, 57111262), (13, 30752218), (14, 28555631), (17, 23516402), (26, 15376109), (34, 11758201), (91, 4393174), (119, 3359486), (157, 2546362), (182, 2196587), (221, 1808954), (238, 1679743), (314, 1273181), (442, 904477), (823, 485758), (1099, 363766), (1547, 258422), (1646, 242879), (2041, 195874), (2198, 181883), (2669, 149786), (3094, 129211), (4082, 97937), (5338, 74893), (5761, 69394), (10699, 37366), (11522, 34697), (13991, 28574), (14287, 27982), (18683, 21398)]