20178004532

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{13829}}^1$

素因数の和:13953

約数の個数: 72

約数和(自身を含む): 42701729280

約数和(自身を除く): 22523724748

約数列:

[1, 2, 4, 7, 14, 28, 31, 41, 62, 82, 124, 164, 217, 287, 434, 574, 868, 1148, 1271, 1681, 2542, 3362, 5084, 6724, 8897, 11767, 13829, 17794, 23534, 27658, 35588, 47068, 52111, 55316, 96803, 104222, 193606, 208444, 364777, 387212, 428699, 566989, 729554, 857398, 1133978, 1459108, 1714796, 2267956, 3000893, 3968923, 6001786, 7937846, 12003572, 15875692, 17576659, 23246549, 35153318, 46493098, 70306636, 92986196, 123036613, 162725843, 246073226, 325451686, 492146452, 650903372, 720643019, 1441286038, 2882572076, 5044501133, 10089002266, 20178004532]

約数ペア:

[(1, 20178004532), (2, 10089002266), (4, 5044501133), (7, 2882572076), (14, 1441286038), (28, 720643019), (31, 650903372), (41, 492146452), (62, 325451686), (82, 246073226), (124, 162725843), (164, 123036613), (217, 92986196), (287, 70306636), (434, 46493098), (574, 35153318), (868, 23246549), (1148, 17576659), (1271, 15875692), (1681, 12003572), (2542, 7937846), (3362, 6001786), (5084, 3968923), (6724, 3000893), (8897, 2267956), (11767, 1714796), (13829, 1459108), (17794, 1133978), (23534, 857398), (27658, 729554), (35588, 566989), (47068, 428699), (52111, 387212), (55316, 364777), (96803, 208444), (104222, 193606)]