20878512

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{103}}^2$

素因数の和:258

約数の個数: 60

約数和(自身を含む): 55793304

約数和(自身を除く): 34914792

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 103, 123, 164, 206, 246, 309, 328, 412, 492, 618, 656, 824, 984, 1236, 1648, 1968, 2472, 4223, 4944, 8446, 10609, 12669, 16892, 21218, 25338, 31827, 33784, 42436, 50676, 63654, 67568, 84872, 101352, 127308, 169744, 202704, 254616, 434969, 509232, 869938, 1304907, 1739876, 2609814, 3479752, 5219628, 6959504, 10439256, 20878512]

約数ペア:

[(1, 20878512), (2, 10439256), (3, 6959504), (4, 5219628), (6, 3479752), (8, 2609814), (12, 1739876), (16, 1304907), (24, 869938), (41, 509232), (48, 434969), (82, 254616), (103, 202704), (123, 169744), (164, 127308), (206, 101352), (246, 84872), (309, 67568), (328, 63654), (412, 50676), (492, 42436), (618, 33784), (656, 31827), (824, 25338), (984, 21218), (1236, 16892), (1648, 12669), (1968, 10609), (2472, 8446), (4223, 4944)]