280757204

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:373

約数の個数: 96

約数和(自身を含む): 632217600

約数和(自身を除く): 351460396

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 139, 179, 182, 217, 278, 358, 364, 403, 434, 556, 716, 806, 868, 973, 1253, 1612, 1807, 1946, 2327, 2506, 2821, 3614, 3892, 4309, 4654, 5012, 5549, 5642, 7228, 8618, 9308, 11098, 11284, 12649, 16289, 17236, 22196, 24881, 25298, 30163, 32578, 38843, 49762, 50596, 56017, 60326, 65156, 72137, 77686, 99524, 112034, 120652, 144274, 155372, 174167, 224068, 288548, 323453, 348334, 392119, 504959, 646906, 696668, 771311, 784238, 1009918, 1293812, 1542622, 1568476, 2019836, 2264171, 3085244, 4528342, 5399177, 9056684, 10027043, 10798354, 20054086, 21596708, 40108172, 70189301, 140378602, 280757204]

約数ペア:

[(1, 280757204), (2, 140378602), (4, 70189301), (7, 40108172), (13, 21596708), (14, 20054086), (26, 10798354), (28, 10027043), (31, 9056684), (52, 5399177), (62, 4528342), (91, 3085244), (124, 2264171), (139, 2019836), (179, 1568476), (182, 1542622), (217, 1293812), (278, 1009918), (358, 784238), (364, 771311), (403, 696668), (434, 646906), (556, 504959), (716, 392119), (806, 348334), (868, 323453), (973, 288548), (1253, 224068), (1612, 174167), (1807, 155372), (1946, 144274), (2327, 120652), (2506, 112034), (2821, 99524), (3614, 77686), (3892, 72137), (4309, 65156), (4654, 60326), (5012, 56017), (5549, 50596), (5642, 49762), (7228, 38843), (8618, 32578), (9308, 30163), (11098, 25298), (11284, 24881), (12649, 22196), (16289, 17236)]