39844520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 95472000

約数和(自身を除く): 55627480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 509, 515, 760, 824, 1018, 1030, 1957, 2036, 2060, 2545, 3914, 4072, 4120, 5090, 7828, 9671, 9785, 10180, 15656, 19342, 19570, 20360, 38684, 39140, 48355, 52427, 77368, 78280, 96710, 104854, 193420, 209708, 262135, 386840, 419416, 524270, 996113, 1048540, 1992226, 2097080, 3984452, 4980565, 7968904, 9961130, 19922260, 39844520]

約数ペア:

[(1, 39844520), (2, 19922260), (4, 9961130), (5, 7968904), (8, 4980565), (10, 3984452), (19, 2097080), (20, 1992226), (38, 1048540), (40, 996113), (76, 524270), (95, 419416), (103, 386840), (152, 262135), (190, 209708), (206, 193420), (380, 104854), (412, 96710), (509, 78280), (515, 77368), (760, 52427), (824, 48355), (1018, 39140), (1030, 38684), (1957, 20360), (2036, 19570), (2060, 19342), (2545, 15656), (3914, 10180), (4072, 9785), (4120, 9671), (5090, 7828)]