221293872

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{557}}^1$

素因数の和:691

約数の個数: 120

約数和(自身を含む): 647637120

約数和(自身を除く): 426343248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 89, 93, 124, 144, 178, 186, 248, 267, 279, 356, 372, 496, 534, 557, 558, 712, 744, 801, 1068, 1114, 1116, 1424, 1488, 1602, 1671, 2136, 2228, 2232, 2759, 3204, 3342, 4272, 4456, 4464, 5013, 5518, 6408, 6684, 8277, 8912, 10026, 11036, 12816, 13368, 16554, 17267, 20052, 22072, 24831, 26736, 33108, 34534, 40104, 44144, 49573, 49662, 51801, 66216, 69068, 80208, 99146, 99324, 103602, 132432, 138136, 148719, 155403, 198292, 198648, 207204, 276272, 297438, 310806, 396584, 397296, 414408, 446157, 594876, 621612, 793168, 828816, 892314, 1189752, 1243224, 1536763, 1784628, 2379504, 2486448, 3073526, 3569256, 4610289, 6147052, 7138512, 9220578, 12294104, 13830867, 18441156, 24588208, 27661734, 36882312, 55323468, 73764624, 110646936, 221293872]

約数ペア:

[(1, 221293872), (2, 110646936), (3, 73764624), (4, 55323468), (6, 36882312), (8, 27661734), (9, 24588208), (12, 18441156), (16, 13830867), (18, 12294104), (24, 9220578), (31, 7138512), (36, 6147052), (48, 4610289), (62, 3569256), (72, 3073526), (89, 2486448), (93, 2379504), (124, 1784628), (144, 1536763), (178, 1243224), (186, 1189752), (248, 892314), (267, 828816), (279, 793168), (356, 621612), (372, 594876), (496, 446157), (534, 414408), (557, 397296), (558, 396584), (712, 310806), (744, 297438), (801, 276272), (1068, 207204), (1114, 198648), (1116, 198292), (1424, 155403), (1488, 148719), (1602, 138136), (1671, 132432), (2136, 103602), (2228, 99324), (2232, 99146), (2759, 80208), (3204, 69068), (3342, 66216), (4272, 51801), (4456, 49662), (4464, 49573), (5013, 44144), (5518, 40104), (6408, 34534), (6684, 33108), (8277, 26736), (8912, 24831), (10026, 22072), (11036, 20052), (12816, 17267), (13368, 16554)]