55463780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 119387520

約数和(自身を除く): 63923740

約数列:

[1, 2, 4, 5, 10, 20, 71, 139, 142, 278, 281, 284, 355, 556, 562, 695, 710, 1124, 1390, 1405, 1420, 2780, 2810, 5620, 9869, 19738, 19951, 39059, 39476, 39902, 49345, 78118, 79804, 98690, 99755, 156236, 195295, 197380, 199510, 390590, 399020, 781180, 2773189, 5546378, 11092756, 13865945, 27731890, 55463780]

約数ペア:

[(1, 55463780), (2, 27731890), (4, 13865945), (5, 11092756), (10, 5546378), (20, 2773189), (71, 781180), (139, 399020), (142, 390590), (278, 199510), (281, 197380), (284, 195295), (355, 156236), (556, 99755), (562, 98690), (695, 79804), (710, 78118), (1124, 49345), (1390, 39902), (1405, 39476), (1420, 39059), (2780, 19951), (2810, 19738), (5620, 9869)]