641219488

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:499

約数の個数: 144

約数和(自身を含む): 1604746080

約数和(自身を除く): 963526592

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 83, 91, 98, 104, 112, 166, 182, 196, 208, 224, 332, 364, 379, 392, 416, 581, 637, 664, 728, 758, 784, 1079, 1162, 1274, 1328, 1456, 1516, 1568, 2158, 2324, 2548, 2653, 2656, 2912, 3032, 4067, 4316, 4648, 4927, 5096, 5306, 6064, 7553, 8134, 8632, 9296, 9854, 10192, 10612, 12128, 15106, 16268, 17264, 18571, 18592, 19708, 20384, 21224, 30212, 31457, 32536, 34489, 34528, 37142, 39416, 42448, 52871, 60424, 62914, 65072, 68978, 74284, 78832, 84896, 105742, 120848, 125828, 130144, 137956, 148568, 157664, 211484, 220199, 241423, 241696, 251656, 275912, 297136, 408941, 422968, 440398, 482846, 503312, 551824, 594272, 817882, 845936, 880796, 965692, 1006624, 1103648, 1541393, 1635764, 1691872, 1761592, 1931384, 2862587, 3082786, 3271528, 3523184, 3862768, 5725174, 6165572, 6543056, 7046368, 7725536, 11450348, 12331144, 13086112, 20038109, 22900696, 24662288, 40076218, 45801392, 49324576, 80152436, 91602784, 160304872, 320609744, 641219488]

約数ペア:

[(1, 641219488), (2, 320609744), (4, 160304872), (7, 91602784), (8, 80152436), (13, 49324576), (14, 45801392), (16, 40076218), (26, 24662288), (28, 22900696), (32, 20038109), (49, 13086112), (52, 12331144), (56, 11450348), (83, 7725536), (91, 7046368), (98, 6543056), (104, 6165572), (112, 5725174), (166, 3862768), (182, 3523184), (196, 3271528), (208, 3082786), (224, 2862587), (332, 1931384), (364, 1761592), (379, 1691872), (392, 1635764), (416, 1541393), (581, 1103648), (637, 1006624), (664, 965692), (728, 880796), (758, 845936), (784, 817882), (1079, 594272), (1162, 551824), (1274, 503312), (1328, 482846), (1456, 440398), (1516, 422968), (1568, 408941), (2158, 297136), (2324, 275912), (2548, 251656), (2653, 241696), (2656, 241423), (2912, 220199), (3032, 211484), (4067, 157664), (4316, 148568), (4648, 137956), (4927, 130144), (5096, 125828), (5306, 120848), (6064, 105742), (7553, 84896), (8134, 78832), (8632, 74284), (9296, 68978), (9854, 65072), (10192, 62914), (10612, 60424), (12128, 52871), (15106, 42448), (16268, 39416), (17264, 37142), (18571, 34528), (18592, 34489), (19708, 32536), (20384, 31457), (21224, 30212)]