19562488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 42301440

約数和(自身を除く): 22738952

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 71, 88, 101, 124, 142, 202, 248, 284, 341, 404, 568, 682, 781, 808, 1111, 1364, 1562, 2201, 2222, 2728, 3124, 3131, 4402, 4444, 6248, 6262, 7171, 8804, 8888, 12524, 14342, 17608, 24211, 25048, 28684, 34441, 48422, 57368, 68882, 78881, 96844, 137764, 157762, 193688, 222301, 275528, 315524, 444602, 631048, 889204, 1778408, 2445311, 4890622, 9781244, 19562488]

約数ペア:

[(1, 19562488), (2, 9781244), (4, 4890622), (8, 2445311), (11, 1778408), (22, 889204), (31, 631048), (44, 444602), (62, 315524), (71, 275528), (88, 222301), (101, 193688), (124, 157762), (142, 137764), (202, 96844), (248, 78881), (284, 68882), (341, 57368), (404, 48422), (568, 34441), (682, 28684), (781, 25048), (808, 24211), (1111, 17608), (1364, 14342), (1562, 12524), (2201, 8888), (2222, 8804), (2728, 7171), (3124, 6262), (3131, 6248), (4402, 4444)]