215211204

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 615953520

約数和(自身を除く): 400742316

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 29, 36, 39, 52, 58, 78, 87, 101, 116, 117, 156, 157, 174, 202, 234, 261, 303, 314, 348, 377, 404, 468, 471, 522, 606, 628, 754, 909, 942, 1044, 1131, 1212, 1313, 1413, 1508, 1818, 1884, 2041, 2262, 2626, 2826, 2929, 3393, 3636, 3939, 4082, 4524, 4553, 5252, 5652, 5858, 6123, 6786, 7878, 8164, 8787, 9106, 11716, 11817, 12246, 13572, 13659, 15756, 15857, 17574, 18212, 18369, 23634, 24492, 26361, 27318, 31714, 35148, 36738, 38077, 40977, 47268, 47571, 52722, 54636, 59189, 63428, 73476, 76154, 81954, 95142, 105444, 114231, 118378, 142713, 152308, 163908, 177567, 190284, 206141, 228462, 236756, 285426, 342693, 355134, 412282, 456924, 459853, 532701, 570852, 618423, 685386, 710268, 824564, 919706, 1065402, 1236846, 1370772, 1379559, 1839412, 1855269, 2130804, 2473692, 2759118, 3710538, 4138677, 5518236, 5978089, 7421076, 8277354, 11956178, 16554708, 17934267, 23912356, 35868534, 53802801, 71737068, 107605602, 215211204]

約数ペア:

[(1, 215211204), (2, 107605602), (3, 71737068), (4, 53802801), (6, 35868534), (9, 23912356), (12, 17934267), (13, 16554708), (18, 11956178), (26, 8277354), (29, 7421076), (36, 5978089), (39, 5518236), (52, 4138677), (58, 3710538), (78, 2759118), (87, 2473692), (101, 2130804), (116, 1855269), (117, 1839412), (156, 1379559), (157, 1370772), (174, 1236846), (202, 1065402), (234, 919706), (261, 824564), (303, 710268), (314, 685386), (348, 618423), (377, 570852), (404, 532701), (468, 459853), (471, 456924), (522, 412282), (606, 355134), (628, 342693), (754, 285426), (909, 236756), (942, 228462), (1044, 206141), (1131, 190284), (1212, 177567), (1313, 163908), (1413, 152308), (1508, 142713), (1818, 118378), (1884, 114231), (2041, 105444), (2262, 95142), (2626, 81954), (2826, 76154), (2929, 73476), (3393, 63428), (3636, 59189), (3939, 54636), (4082, 52722), (4524, 47571), (4553, 47268), (5252, 40977), (5652, 38077), (5858, 36738), (6123, 35148), (6786, 31714), (7878, 27318), (8164, 26361), (8787, 24492), (9106, 23634), (11716, 18369), (11817, 18212), (12246, 17574), (13572, 15857), (13659, 15756)]