16404780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 53061120

約数和(自身を除く): 36656340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 139, 140, 210, 278, 281, 417, 420, 556, 562, 695, 834, 843, 973, 1124, 1390, 1405, 1668, 1686, 1946, 1967, 2085, 2780, 2810, 2919, 3372, 3892, 3934, 4170, 4215, 4865, 5620, 5838, 5901, 7868, 8340, 8430, 9730, 9835, 11676, 11802, 14595, 16860, 19460, 19670, 23604, 29190, 29505, 39059, 39340, 58380, 59010, 78118, 117177, 118020, 156236, 195295, 234354, 273413, 390590, 468708, 546826, 585885, 781180, 820239, 1093652, 1171770, 1367065, 1640478, 2343540, 2734130, 3280956, 4101195, 5468260, 8202390, 16404780]

約数ペア:

[(1, 16404780), (2, 8202390), (3, 5468260), (4, 4101195), (5, 3280956), (6, 2734130), (7, 2343540), (10, 1640478), (12, 1367065), (14, 1171770), (15, 1093652), (20, 820239), (21, 781180), (28, 585885), (30, 546826), (35, 468708), (42, 390590), (60, 273413), (70, 234354), (84, 195295), (105, 156236), (139, 118020), (140, 117177), (210, 78118), (278, 59010), (281, 58380), (417, 39340), (420, 39059), (556, 29505), (562, 29190), (695, 23604), (834, 19670), (843, 19460), (973, 16860), (1124, 14595), (1390, 11802), (1405, 11676), (1668, 9835), (1686, 9730), (1946, 8430), (1967, 8340), (2085, 7868), (2780, 5901), (2810, 5838), (2919, 5620), (3372, 4865), (3892, 4215), (3934, 4170)]